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81-570: The National Army serves as the land-based branch of the Uruguayan Armed Forces . In accordance with Decree-Law 15,688 , its mission is to contribute to guaranteeing external and internal national security, within the framework of the mission of the Armed Forces. The National Army is organized into four divisions , with each one grouping a certain number of departments . The Commander in Chief

162-444: A metal detector . The Glock pistol has a relatively low slide profile, which holds the barrel axis close to the shooter's hand and makes the pistol more comfortable to fire by reducing muzzle rise and allows for faster aim recovery in rapid firing sequences. The rectangular slide is milled from a single block of ordnance-grade steel using CNC machinery. The barrel and slide undergo two hardening processes prior to treatment with

243-419: A 17-round capacity (which can be extended to 19 with an optional floor plate) or optional 24 or 33-round high-capacity magazines . For jurisdictions which restrict magazine capacity to 10 rounds, Glock offers single-stack, 10-round magazines. The magazines are made of steel and are overmolded with plastic. A steel spring drives a plastic follower. After the last cartridge has been fired, the slide remains open on

324-459: A barrel featuring a revised style of polygonal rifling (called the "Glock Marksman Barrel" by Glock), a deeper recessed barrel crown, omission of the finger grooves on the grip, a flared magazine well, and a reintroduction of a half-moon-shaped cutout on the bottom front of the grip. The locking block pin located above the trigger pin that was introduced in the third generation is omitted. Many internal parts were less conspicuously revised. "Gen 5"

405-478: A bidding contest in 2007 and 2008. In addition, about 300 Russian AK-101s are already used, and the elite airborne, commando, and antiterrorist Battalion 14 ( Batallón de Infantería Paracaidista N.º 14 ) exclusively employ German Heckler & Koch G36s . The Army will receive locally produced Glock 17 pistols as replacements for its legacy Browning Hi-Power and M1911 pistols. Uruguay Special Forces are now fielding an indigenous .50 BMG sniper rifle called

486-485: A bright red frame, and Simunition-adapted practice pistols ("T"   models) a bright blue frame for easy identification. In 2009, the Glock   22   RTF2 (Rough Textured Frame 2) (chambered in .40 S&W ) was introduced. This pistol featured a new checkering texture around the grip and new scalloped (fish gill-shaped) serrations at the rear of the sides of the slide. Many of the existing models became available in

567-505: A comparison microscope and an ABIS (Evofinder). Glock pistols lack a traditional on-off safety lever, which Glock markets as an advantage, especially to police departments, as the user is able to fire immediately without separately manipulating a safety. Instead, the pistols are designed with three independent safety mechanisms to prevent accidental discharge. The system, designated "Safe Action" by Glock, consists of an external integrated trigger safety and two automatic internal safeties:

648-516: A contract to Glock to provide new 9×19mm Parabellum chambered duty pistols. The solicitation specifications deviated from the specifications of Glock fourth-generation models. Features found in the M series pistols evolved into what become Glock's Fifth Generation or Gen5 pistols. In August 2016, the Indianapolis Metro Police Department (IMPD) started training with a batch of Glock 17M pistols. The most obvious difference with

729-399: A few Cessna A-37B Dragonflies and transport aircraft of two Lockheed C-130s , two Embraer C-95 Bandeirantes , one Embraer C-120ER Brasilia , five Spanish CASA C-212-200/300 Aviocars and ten Cessna U-206H Stationairs. The helicopter fleet consist of a few Bell UH-1H Iroquois , five Bell 212 and two Eurocopter AS-365N2 Dauphin . The Air Force Academy ( Escuela Militar de Aeronáutica )

810-410: A firing pin safety and a drop safety. The external safety is a small inner lever contained in the trigger. Pressing the lever activates the trigger bar and sheet metal connector. The firing pin safety is a solid hardened steel pin that, in the secured state, blocks the firing pin channel (disabling the firing pin in its longitudinal axis). It is pushed upward to release the firing pin for firing only when

891-437: A height of 2 m (6 ft 7 in) onto a steel plate. After firing 15,000 rounds of standard ammunition, the pistol was to be inspected for wear. The pistol was to then be used to fire an overpressure test cartridge generating 5,000 bar (500 MPa; 73,000 psi). The normal maximum operating pressure (P max ) for the 9 mm NATO is 2,520 bar (252 MPa; 36,500 psi). Glock became aware of

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972-407: A lower impact 6.1 mm (0.24 in) sight, and two higher impact versions – 6.9 mm (0.27 in) and 7.3 mm (0.29 in). The Glock pistol accessories available from the factory include several devices for tactical illumination, such as a series of front rail-mounted "Glock tactical lights" featuring a white tactical light and an optional visible laser sight. An alternate version of

1053-663: A matte gray-colored, nonglare surface with a 64 Rockwell C hardness rating and a 99% resistance to salt water corrosion (which meets or exceeds stainless steel specifications), making the Glock particularly suitable for individuals carrying the pistol concealed as the highly chloride-resistant finish allows the pistol to better endure the effects of perspiration. Glock steel parts using the Tenifer treatment are more corrosion resistant than analogous gun parts having other finishes or treatments, including Teflon , bluing , hard chrome plating , or phosphates. During 2010, Glock switched from

1134-546: A modified extractor that serves as a loaded chamber indicator , and the locking block was enlarged, along with the addition of an extra cross pin to aid the distribution of bolt thrust forces exerted by the locking block. This cross pin is known as the locking block pin and is located above the trigger pin. The polymer frames of third-generation models can be black, flat dark earth, or olive drab . Besides that, non-firing dummy pistols ("P"   models) and non-firing dummy pistols with resetting triggers ("R"   models) have

1215-448: A modified rough-textured frame (RTF-4), front grip strap with finger grooves, interchangeable backstraps of different sizes, and an accessory rail. "Gen4" is rollmarked on the slide next to the model number to identify the fourth-generation pistols. The basic grip size of the fourth-generation Glock pistols is slightly smaller compared to the previous design. A punch is provided to remove the standard trigger housing pin and replace it with

1296-499: A notch cut on both sides of the magazine body. Earlier versions of the magazines will not lock into the Gen4 pistols if the user has moved the magazine release button to be operated by a left-handed user. Gen4 magazines will work in older models. Mechanically, fourth-generation Glock pistols are fitted with a dual recoil spring assembly to help reduce perceived recoil and increase service life expectancy. Earlier subcompact Glock models such as

1377-435: A polygonal profile consisting of a series of six or eight interconnected noncircular segments (only the .45 ACP and .45 GAP have octagonal polygonal rifling). Each depressed segment within the interior of the barrel is the equivalent of a groove in a conventional barrel. Thus, the interior of the barrel consists of smooth arcs of steel rather than sharply defined slots. Instead of using a traditional broaching machine to cut

1458-432: A proprietary nitriding process called Tenifer . The Tenifer treatment is applied in a 500 °C (932 °F) nitrate bath. The Tenifer finish is between 0.04 and 0.05 mm (0.0016 and 0.0020 in) in thickness, and is characterized by extreme resistance to wear and corrosion; it penetrates the metal, and treated parts have similar properties even below the surface to a certain depth. The Tenifer process produces

1539-508: A recoil spring exchange program in which the manufacturer voluntarily offers to exchange the recoil spring assemblies of its fourth-generation pistols (with the exception of the "subcompact" Glock 26 and Glock 27 models) sold before 22 July 2011 at no cost "to ensure our products perform up to GLOCK's stringent standards", according to the company. On 29 June 2016, the United States Federal Bureau of Investigation (FBI) awarded

1620-448: A three-masted staysail schooner named Capitán Miranda (ROU 20) and other smaller craft. The Navy also includes Marine Corps and a small Naval Air Station at Laguna del Sauce , equipped with two Beechcraft T-34C-1 Turbo Mentors , two Beechcraft Super King Air and three Cessna O-2A Skymasters fixed-wing aircraft, and two Bell 412 and one Bell OH-58A Kiowa helicopters. The Uruguayan Naval Academy ( Escuela Naval or ESNAL )

1701-403: A white dot on the front post and a rectangular border on the rear notch. Some newer rear sights can be adjusted for windage (on certain models due to the windage sights not coming as factory default), as it has a degree of lateral movement in the dovetail it is mounted in. Three other factory rear sight configurations are available in addition to the standard 6.5 mm (0.26 in) height sight:

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1782-519: Is a short recoil –operated, locked-breech semi-automatic pistol that uses a modified Browning cam-lock system adapted from the Hi-Power pistol. The firearm's locking mechanism uses a linkless, vertically tilting barrel with a rectangular breech that locks into the ejection port cut-out in the slide (the SIG Sauer system ). During the recoil stroke, the barrel moves rearward initially locked together with

1863-791: Is a brand of polymer - framed , short-recoil -operated, striker-fired , locked-breech semi-automatic pistols designed and produced by Austrian manufacturer Glock Ges.m.b.H . The firearm entered Austrian military and police service in 1982 after becoming the top performer in reliability and safety tests. Glock pistols have become the company's most profitable line of products, and have been supplied to national armed forces, security agencies, and police forces in at least 48 countries. Glocks are also popular firearms among civilians for recreational and competition shooting , home- and self-defense, both in concealed or open carry . The company's founder and head engineer, Gaston Glock (1929–2023), had no experience with firearms design or manufacture at

1944-893: Is located at General Artigas Air Base in Pando , Canelones ; the Air Force Technical School of Aeronautics ( Escuela Técnica de Aeronáutica ) in Toledo Sur, Canelones ; and the Air Force Command Academy ( Escuela de Comando y Estado Mayor Aéreo ) at Captain Boiso Lanza Air Base in Montevideo . Training aircraft consists of twelve Italian Aermacchi SF-260EU , three Beechcraft UB-55 and UB-58 Barons , and five Swiss Pilatus PC-7U Turbo Trainers . Glock 17 Glock ( German: [ˈglɔk] ; stylized as GLOCK )

2025-466: Is located in Carrasco , a suburb of Montevideo . Instruction consists of a 4-year course of study culminating in a cruise on the instructional tall ship Capitán Miranda , which lasts several weeks and takes graduates to various ports around the world. The Air Force consists of about 3,000 personnel and organized into three Air Brigades (I, II, & III) and several Squadrons. Combat aircraft consist of

2106-457: Is pinned to the trigger mechanism housing. Pistols after 2002 have a reshaped extractor that serves as a loaded chamber indicator. When a cartridge is present in the chamber, a tactile metal edge protrudes slightly out immediately behind the ejection port on the right side of the slide. The striker firing mechanism has a spring-loaded firing pin that is cocked in two stages that the firing pin spring powers. The factory-standard firing pin spring

2187-402: Is rated at 24  N (5.4  lb f ), but by using a modified firing pin spring, it can be increased to 28 N (6.3 lb f ) or to 31 N (7.0 lb f ). When the pistol is charged, the firing pin is in the half-cock position. As the trigger is pulled, the firing pin is then fully cocked. At the end of its travel, the trigger bar is tilted downward by the connector, releasing

2268-458: Is rated at 25  N (5.6  lb f ), but by using a modified connector, it can be increased to 35 N (7.9 lb f ) or lowered to 20 N (4.5 lb f ). In response to a request made by American law enforcement agencies for a two-stage trigger with increased trigger pull, Glock introduced the NY1 (New York) trigger module, which features a flat spring in a plastic housing that replaces

2349-481: Is retained in the frame by a steel axis pin that holds the trigger and slide catch. The trigger housing is held to the frame by means of a polymer pin. A spring-loaded sheet-metal pressing serves as the slide catch, which is secured from unintentional manipulation by a raised guard molded into the frame. Because of its polymer construction, there were initially fears that Glock pistols would be invisible to airport X-ray machines , making them easy to illegally import into

2430-483: Is rollmarked on the slide next to the model number to identify the fifth-generation pistols. The "Gen 5" slide can feature front serrations (FS) to provide an additional tactile traction surface choice. The magazines were also revised for the fifth-generation models: the redesigned magazine floor plates feature a frontward protruding lip to offer grip for manual assisted extraction and the magazine follower became orange colored for easier visual identification. The Glock 17

2511-666: Is the highest ranking officer of the branch, who reports directly to the President of Uruguay , acting with the Minister of National Defense , or in the Council of Ministers . This military -related article is a stub . You can help Misplaced Pages by expanding it . This Uruguay -related article is a stub . You can help Misplaced Pages by expanding it . Armed Forces of Uruguay The Armed Forces of Uruguay ( Spanish : Fuerzas Armadas del Uruguay or FF.AA. del Uruguay ) consist of

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2592-633: The Austrian Armed Forces announced that it would seek tenders for a new, modern duty pistol to replace their World War II –era Walther P38 handguns. The Federal Ministry of Defence of Austria formulated a list of 17 criteria for the new generation service pistol, including requirements that it would be self loading ; fire the NATO -standard 9×19mm Parabellum round; the magazines were not to require any means of assistance for loading; be secure against accidental discharge from shock, strike, and drop from

2673-546: The Austrian Army 's planned procurement, and in 1982, assembled a team of Europe's leading handgun experts from military, police, and civilian sport-shooting circles to define the most desirable characteristics in a combat pistol. Within three months, Glock had developed a working prototype that combined proven mechanisms and traits from previous pistol designs. In addition, the plan was to make extensive use of synthetic materials and modern manufacturing technologies, which led to

2754-868: The Browning Hi-Power , and the Austrian Steyr Mannlicher entered the competition with the GB ). The results of the Austrian trials sparked a wave of interest in Western Europe and overseas, particularly in the United States, where a similar effort to select a service-wide replacement for the M1911 had been going on since the late 1970s (known as the Joint Service Small Arms Program ). In late 1983,

2835-703: The Canadian Army , receiving a second batch of 100 of Grizzlys and 5 Huskys, the recovery version. It has 4 sets of RM-70 multiple rocket launchers. The army operates 40 Land Rover Defender 110SW vehicles, and is looking to buy between 30 and 40 more. The current assault rifle used by the Army is the Argentinian-built version of the Belgian FN FAL ; it is being replaced by the Austrian Steyr AUG following

2916-1059: The Democratic Republic of the Congo and Haiti . There is also a 58-man contingent in the MFO in the Sinai . The Army consists of some 15,000 personnel organized into four divisions . It is equipped with 15 Israeli Ti-67 (T-55) Main Battle Tanks (MBTs), 17 American M24 Chaffee light tanks, 46 M41A1 Walker Bulldog light tanks, 24 American M113A1 Armored Personnel Carriers (APCs), 15 Czech BMP-1 Infantry Fighting Vehicles (IFVs), 130 OT-64 SKOT APCs, 64 German Condor APCs , 15 Brazilian EE-9 Cascavel , 18 EE-3 Jararaca armored cars , and 48 Russian lightly armored GAZ-3937 amphibious vehicles. In 2008, Uruguay also purchased 44 6x6 Canadian-made AVGP APCs rehabilitated by FAMAE in Chile after retirement from

2997-573: The FS50 Peregrino . It is a single-shot bolt-action rifle that was developed in Uruguay for about two years. The Uruguayan Army was considering buying either the Panzerfaust 3 or RPG-7 as short-range anti-tank weapons. Acquisition of the rockets was cancelled due to lack of funds. The Navy consists of about 5,700 personnel under command of Admiral Jorge Wilson and is organized into four commands:

3078-803: The National Army of Uruguay , the National Navy of Uruguay , and the Uruguayan Air Force . These three independent branches are constitutionally subordinate to the President of the Republic through the Minister of Defense . The government has trimmed the armed forces to about 16,800 for the Army; 6,000 for the Navy; and 3,000 for the Air Force. As of February 2003, Uruguay has more than 2,500 soldiers deployed on 12 UN Peacekeeping missions. The largest groups are in

3159-654: The United States Department of Defense inquired about the Glock pistol and received four samples of the Glock   17 for unofficial evaluation. Glock was then invited to participate in the XM9 Personal Defense Pistol Trials, but declined because the DOD specifications would require extensive retooling of production equipment and providing 35 test samples in an unrealistic time frame. In 1985, after joint Norwegian and Swedish trials from 1983 to 1985,

3240-452: The "fifth generation" or "Gen 5". The revisions centered on ergonomics and improving reliability. Many parts of fifth-generation Glock pistols cannot be interchanged with those of the previous generations. The two fifth-generation models announced were the Glock 17 and Glock 19, chambered for the 9×19mm Parabellum. Some conspicuous changes on the fifth-generation models are ambidextrous slide stop levers, DLC surface finish for barrel and slide,

3321-843: The Austrian Armaments and Defence Technology Agency, the Glock P80 was clearly superior to other handguns in terms of performance, handling, charging capacity and price. The handgun was adopted into service with the Austrian military and law enforcement in 1982 as the Pistole 80 (P80), with an initial order for 25,000 guns. The Glock   17 outperformed eight different pistols from five other established manufacturers ( Heckler & Koch of Germany offered their P7M8 , P7M13 , and P9S , SIG Sauer of Switzerland bid with their P220 and P226 models, Beretta of Italy submitted their model 92SB-F , FN Herstal of Belgium proposed an updated variant of

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3402-572: The Fleet Command ( Comando de la Flota or COMFLO ), the Coast Guard ( Prefectura Nacional Naval or PRENA ), the Chief Directorate of Naval Materiel ( Dirección General de Material Naval or DIMAT ), and the Chief Directorate of Naval Personnel ( Dirección General de Personal Naval or DIPER ). The Navy General Staff ( Estado Mayor General de la Armada or ESMAY ) acts as an advisory body to

3483-409: The Glock   17 becoming a cost-effective candidate. Several samples of the Glock   17 (so named corresponding to its magazine capacity or because it was the 17th patent procured by the company) were submitted for assessment trials in early 1982, and after passing all of the exhaustive endurance and abuse tests, the Glock emerged as the winner. According to Friedrich Dechant, former head of

3564-600: The Glock   17 was accepted into service as the P80 in Norway, and in 1988 as the Pistol 88 in Sweden, where it surpassed all prior NATO durability standards. As a result, the Glock   17 became a standard NATO-classified sidearm and was granted a NATO Stock Number (1005-25-133-6775). By 1992, some 350,000   pistols had been sold in more than 45   countries, including 250,000 in

3645-488: The Glock 19 and Glock 23, the reduced size "compact" versions of the Glock 17 and Glock 22, became available for retail. In late 2010, Glock continued the introduction of fourth-generation models with the Glock 26 and Glock 27 "subcompact" variants. In January 2013, more fourth-generation Glock pistols were introduced commercially during the annual SHOT Show, including the Glock 20 Generation 4 along with other fourth-generation Glock models. In September 2011, Glock announced

3726-554: The Glock 26 and Glock 30 have already used a dual recoil spring assembly that was carried over to the fourth-generation versions of those models. The slide and barrel shelf have been resized, and the front portion of the polymer frame has been widened and internally enlarged, to accommodate the dual recoil spring assembly. The trigger mechanism housing has also been modified to fit into the smaller-sized grip space. The introduction of fourth-generation Glock pistols continued in July 2010 when

3807-409: The Glock pistols involved the addition of checkering on the front strap and trigger guard and checkering and serrations to the back strap. These versions, introduced in 1988, were informally referred to as "second-generation" or Gen2 models, though Glock did not mark the pistols Gen2. In 1991, an integrated recoil spring assembly replaced the original two-piece recoil spring and tube design. The magazine

3888-485: The Glock third- and fourth-generation models on published images is the omission of finger grooves on the grip. In October of that year, the IMPD issued a 17M voluntary recall following failures encountered while dry firing the pistols during training. According to Major Riddle with the IMPD, "Glock is working to correct the problem and we hope to begin issuing the new [17Ms] as soon as December." In August 2017, Glock presented

3969-534: The ILS renders the Glock unfireable, as well as making it impossible to disassemble. When disengaged, the ILS adds no further safety mechanisms to the Glock pistol. The ILS is available as an option on most Glock pistols. Glock pistols cannot be retrofitted to accommodate the ILS. The lock must be factory-built in Austria and shipped as a special order. The Glock 17 feeds from staggered-column or double stack magazines that have

4050-472: The Internal Locking System (ILS) safety feature named Glock Safety Lock. The ILS is a manually activated lock located in the back of the pistol's grip. It is cylindrical in design and, according to Glock, each key is unique. When activated, the lock causes a tab to protrude from the rear of the grip, giving both a visual and tactile indication as to whether the lock is engaged or not. When activated,

4131-786: The R9GSP trials. The French Armed Forces (FAF) in 2020 began replacing their MAC Mle 1950 and, to a lesser extent, their PAMAS G1 pistols with Glock   17   Gen   5 models specifically made for the FAF. The French preferred the Glock   17   Gen   5 over the HS2000 and CZ P-10 offerings that also made it to the final selection phase. Glock has updated its basic design several times throughout its production history. The first-generation (Gen 1) Glock pistols are most notably recognized by their smoother "pebble finish" grip and finger groove-less frames. The Gen 1 frame pattern and design

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4212-529: The RTF2   version, including the 17, 31, 32, 23, 21, and 19. Some of those did not have the fish gills. At the 2010 SHOT Show , Glock presented the "fourth generation", now dubbed "Gen4" by Glock itself. Updates centered on ergonomics and the recoil spring assembly. The initial two fourth-generation models announced were the full-sized Glock 17 and Glock 22, chambered for the 9×19mm Parabellum and .40 S&W cartridges, respectively. The pistols were displayed with

4293-677: The US were from the AF000   series in January 1986, followed by AH000, AK000, and AL000. These early Glock   (Gen 1) pistols (serial number prefix   AF through AM) were also manufactured with a barrel that had a smaller overall diameter and thinner bore walls, later known as "pencil barrels". These early Glock   17 "pencil barrel" pistols are considered rare and highly desirable by Glock collectors. The barrels were later redesigned with thicker bore walls, and manufacturing continued to evolve and improve

4374-701: The United States alone. Starting in 2013, the British Armed Forces began replacing the Browning Hi-Power pistol with the Glock   17   Gen   4, due to concerns about weight and the external safety of the Hi-Power. The British preferred the Glock   17   Gen   4 over the Beretta Px4 Storm , FN FNP , Heckler & Koch P30 , SIG Sauer P226 , Smith & Wesson M&P , and Steyr M 9A1 of which 19 pistols each, all chambered in 9×19   mm   Parabellum, were entered in

4455-553: The United States in 1985 failed to meet the BATF import "points" requirement, requiring Glock to quickly develop an adjustable rear sight which allowed for the pistols to be imported and sold commercially in 1986. It is believed that Glock designed and created this adjustable rear sight over a weekend in order to meet the ATF's importation requirements, and so it was dubbed the "weekend" sight. These first-generation adjustable rear sights extended past

4536-549: The United States. In actuality, 84% of the gun's weight is from steel, and Polymer 2 is visible to X-ray machines. The myth's prevalence is believed to be connected to a scene that perpetuated the myth in Die Hard 2 , which released a few years after the Glock was invented. In 1988, the Undetectable Firearms Act was passed in the United States, banning the manufacture or import of any gun that could pass undetected through

4617-480: The admiral. The current fleet consists of one ex-German Lüneburg-class replenishment ship , refitted with helipad and used for helicopter patrol and transport and named ROU 04 General Artigas , one former United States Coast Guard (USCG) Cape-class cutter, named ROU 11 Río Negro , three former USCG Marine Protector-class patrol boat, named as ROU 14 Río Arapey , ROU 15 Río de la Plata and ROU 16 Río Yaguaron , three ex-East German Kondor II class minesweepers,

4698-520: The barrel, slide, frame, magazine, and recoil-spring assembly. The firearm is designed for the NATO-standard 9×19mm Parabellum cartridge, but can use high-power (increased pressure) +P ammunition with either full-metal-jacket or jacketed hollow-point projectiles. The hammer-forged barrel has a female type polygonal rifling with a right-hand twist. The stabilization of the round is not by conventional rifling , using lands and grooves, but rather through

4779-480: The combustion gases trapped behind the bullet, slightly greater (consistency in) muzzle velocities, and increased accuracy and ease of maintenance. The newer lines of Glock pistols—i.e. Gen5, G42/43—are equipped with the Glock Marksmanship Barrel , or GMB. While older barrels were somewhat difficult to identify a bullet as coming from a particular barrel with high enough reliability for evidentiary use,

4860-420: The design of Glock pistols. Many of the first-generation Glocks were shipped and sold in the iconic " Tupperware " style plastic boxes. The earliest Glock boxes had ammunition storage compartments that allowed for 17 rounds of 9mm to be stored with the pistol. This box design was later changed by Glock to meet BATF import requirements, and the ammunition storage compartments were removed. A mid-life upgrade to

4941-433: The firing pin to fire the cartridge. The connector resets the trigger bar so that the firing pin will be captured in half-cock at the end of the firing cycle. This is known as a preset trigger mechanism, referred to as the "Safe action" trigger by the manufacturer. The connector ensures the pistol can only fire semiautomatically. The factory-standard, two-stage trigger has a trigger travel of 12.5 mm (0.49 in) and

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5022-429: The longer cross pin needed to mount the medium or large backstrap that will increase the trigger distance by 2 mm (0.079 in) or 4 mm (0.16 in). With the medium backstrap installed, the grip size is identical to the third-generation pistols. The magazine release catches are enlarged and reversible for left-handed use. To use the exchangeable magazine release feature, fourth-generation Glock magazines have

5103-471: The newer GMB ones are designed differently. A study by Stephen Christen and Hans Rudolf Jordi, published by Forensic Science International in February 2019, shows that the new GMB barrels leave more identifiably unique markings on the fired projectile. These marks were more easily identified than previous pistol barrel markings, and were sufficient for reliably tying a bullet to a particular barrel. The study used

5184-493: The pistol to be fired immediately after being submerged in water. They feature additional openings that allow liquids to flow and escape around them, offering enhanced reliability when water has penetrated into the firing pin assembly channel. Magazine floor plates (or +2 baseplates), which expand the capacity of the standard magazines by two rounds, are available for models chambered for the 9×19mm Parabellum, .45 GAP, .40 S&W, .357 SIG , and .380 ACP cartridges. In addition to

5265-452: The rifling into the bore, the hammer forging process involves beating a slowly rotating mandrel through the bore to obtain the hexagonal or octagonal shape. As a result, the barrel's thickness in the area of each groove is not compromised as with conventional square-cut barrels. This has the advantage of providing a better gas seal behind the projectile as the bore has a slightly smaller diameter, which translates into more efficient use of

5346-434: The salt bath nitriding Tenifer process to a not exactly disclosed gas nitriding process. After applying the nitriding process, a black Parkerized decorative surface finish is applied. The underlying nitriding treatment will remain, protecting these parts even if the decorative surface finish were to wear off. A fourth generation Glock 17 consists of 34 parts. For maintenance, the pistol disassembles into five main groups:

5427-552: The second stage to fire a shot. The Glock's frame, magazine body, and several other components are made from a high-strength nylon-based polymer invented by Gaston Glock, called Polymer 2. This plastic was specially formulated to provide increased durability and is more resilient than carbon steel and most steel alloys . Polymer 2 is resistant to shock, caustic liquids , and temperature extremes where traditional steel/alloy frames would warp and become brittle. The injection-molded frame contains four hardened steel guide rails for

5508-418: The slide about 3 mm (0.12 in) until the bullet leaves the barrel and chamber pressure drops to a safe level. A ramped lug extension at the base of the barrel then interacts with a tapered locking block integrated into the frame, forcing the barrel down and unlocking it from the slide. This camming action terminates the barrel's movement while the slide continues back under recoil, extracting and ejecting

5589-466: The slide and magazine release. For example, the subcompact Glock 26 will accept magazines from both the full-size Glock 17 and the compact Glock 19, but the Glock 17 will not accept magazines from the smaller Glock 19 or the Glock 26. The magazines for the Glock 36, the Glock 42, the Glock 43, and the Glock 44 are all unique; they cannot use magazines intended for another model, nor can their magazines be used in other models. The first Glock pistols sent to

5670-457: The slide and were susceptible to breaking. Even on later models, the front sight can easily become misshapen from friction against the holster, leading to replacements with metal sights, or tritium illuminated night sights. More commonly today, the Glock 17 has a fixed polymer combat-type sighting arrangement that consists of a ramped front sight and a notched rear sight with white contrast elements painted on for increased acquisition speed –

5751-520: The slide stop. The slide stop release lever is located on the left side of the frame directly beneath the slide and can be manipulated by the thumb of the right-handed shooter. Glock magazines are interchangeable between models of the same caliber, meaning that a compact or subcompact pistol will accept magazines designed for the larger pistols chambered for the same round. However, magazines designed for compact and subcompact models will not function in larger pistols because they are not tall enough to reach

5832-428: The slide: two at the rear of the frame, and the remaining pair above and in front of the trigger guard. The trigger guard itself is squared off at the front and checkered. The grip has an angle of 109° and a nonslip, stippled surface on the sides and both the front and rear straps. The frame houses the locking block, which is an investment casting that engages a 45° camming surface on the barrel's lower camming lug. It

5913-477: The spent cartridge casing. The slide's uninterrupted rearward movement and counter-recoil cycle are characteristic of the Browning system. Glock pistols incorporate a number of features intended to enhance reliability in adverse conditions, such as utilizing advanced metal coatings, "stub" slide guides instead of true frame rails, and an unusual cocking mechanism wherein the trigger is partially responsible for cocking

5994-508: The standard nonadjustable polymer sight line, three alternative sight lines are offered by Glock. These consist of steel, adjustable, and self-illuminating tritium night rear sights and factory steel and self-illuminating tritium contrast pointer steel front sights. The Glock 17 along with many variants can accept pistol conversion kits, with one such example being the FAB-Defense KPOS Scout. They can also accept special stocks like

6075-407: The striker. By relying partially on force from the shooter's trigger finger to cock the striker, a Glock effectively reduces the load on the recoil spring as the slide moves forward into battery, whereas almost all other striker-fired pistols on the market rely fully on the recoil spring to cock the striker. The slide features a spring-loaded claw extractor , and the stamped sheet metal ejector

6156-498: The tactical light using an invisible infrared light and laser sight is available, designed to be used with an infrared night vision device . Another lighting accessory is an adapter to mount a flashlight onto the bottom of a magazine. Polymer holsters in various configurations and matching magazine pouches are available. In addition, Glock produces optional triggers, recoil springs, slide stops, magazine release levers, and maritime spring cups. Maritime spring cups are designed to allow

6237-402: The time his first pistol, the Glock   17, was being prototyped . Glock had extensive experience in advanced synthetic polymers , which was instrumental in the company's design of the first commercially successful line of pistols with a polymer frame. Glock introduced ferritic nitrocarburizing into the firearms industry as an anticorrosion surface treatment for metal gun parts. In 1980,

6318-459: The trigger bar's standard coil spring. This trigger modification is available in two versions: NY1 and NY2 that are rated at 25 N (5.6 lb f ) to 40 N (9.0 lb f ) and 32 N (7.2 lb f ) to 50 N (11.2 lb f ), respectively, which require about 20 N (4.5 lb f ) to 30 N (6.7 lb f ) of force to disengage the safeties and another 10 N (2.2 lb f ) to 20 N (4.5 lb f ) in

6399-429: The trigger is actuated and the safety is pushed up through the backward movement of the trigger bar. The drop safety guides the trigger bar in a ramp that is released only when direct rearward pressure is applied to the trigger. The three safety mechanisms are automatically disengaged one after the other when the trigger is squeezed, and are automatically reactivated when the trigger is released. In 2003, Glock announced

6480-571: Was slightly modified, changing the floorplate and fitting the follower spring with a resistance insert at its base. In 1998, the frame was further modified with an accessory rail (called the "Universal Glock rail") similar to a Picatinny rail to allow the mounting of laser sights , tactical lights , and other accessories. Thumb rests on both sides of the frame and finger grooves on the front strap were added. Glock pistols with these upgrades are informally referred to as (early) "third-generation" models. Later third-generation models additionally featured

6561-438: Was used by Glock from 1982 through 1988 and pre-dates the checkered grip patterns used in the second generation of Glock pistols. The first Glock   17s imported to the US were serialized with an alphanumeric (two-letter prefix followed by three numbers) stamped into the slide, barrel, and a small metal plate inserted into the bottom side of the polymer frame. The first documented Glock   17s (by serial number) imported into

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