Glock 21 Gen 4
Glock 21 Gen 4
GLOCK 21 Gen 4
Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the power of the 45 Auto round with high magazine capacity. The Modular Beavertail Backstrap System makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters The Gen4 system is the perfect complement to the 45 Auto caliber cartridge.
|1||LENGTH (OVERALL)*||205 mm | 8.07 inch|
|2||SLIDE LENGTH||193 mm | 7.60 inch|
|3||WIDTH (OVERALL)||34 mm | 1.34 inch|
|4||SLIDE WIDTH||28,5 mm | 1.12 inch|
|5||HEIGHT INCL. MAG.||140 mm | 5.51 inch|
|6||Sight Radius POLYMER||172 mm | 6.77 inch|
|Sight Radius STEEL||171 mm | 6.73 inch|
|Sight Radius GNS||170 mm | 6.69 inch|
|7||TRIGGER DISTANCE*||72,5 mm | 2.85 inch|
* FOR GEN4/GEN5 MODELS and G44: Check out the Gen5, Gen4 and G44 technology pages for medium/large beavertail backstraps (G19X and G45 see below).
Technical Data are rounded and do not reflect tolerances – they may be altered without notice! Subject to technical changes.
The Glock pistol accessories available from the factory include several devices for tactical illumination. Hence 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 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 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 10 mm and 9×19mm Parabellum, .45 GAP, .40 S&W, .357 SIG, and .380 ACP cartridges. In addition to 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.