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GLOCK pistol G21 Gen4
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G21Gen4

GLOCK 21 Gen4

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 Back Strap 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.

Caliber graphic
  • Caliber 45 Auto
3 safeties system graphic
  • System Safe action
Magazine capacity graphic
  • Mag. Capacity Standard: 13
Barrel length graphic
  • Barrel Length 117 mm | 4.61 inch
Weight without magazine graphic
  • Weight without magazine 745 g | 26.28 oz
Weight with empty magazine graphic
  • Weight with empty magazine 830 g | 29.28 oz
Weight with loaded magazine graphic
  • Weight with loaded magazine* 1100 g | 38.80 oz
Trigger pull graphic
  • Trigger Pull** 28 N
Muzzle velocity and muzzle energy graphic
  • Muzzle velocity* 250 m/s | 820 fps
Muzzle velocity and muzzle energy graphic
  • Muzzle energy* 460 J | 339 ft lb

* depending on the ammunition used / ** depending on configuration

DIMENSIONS

1 Length (Overall)* 205 mm | 8.07 inch
2 Slide Length (cpl.) 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, G19X, G45: Check out the Gen5, Gen4, G19X and G45 Technology area for medium/large backstraps. 

Technical Data are rounded and do not reflect tolerances – they may be altered without notice! Subject to technical changes.

Some magazines might not be available in all countries due to legal regulations.

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