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.


45 Auto


Safe Action

Mag. Capacity


Barrel Length

117 mm


745 g

Weight + mag.

830 g

Weight + loaded mag.

1100 g

Trigger Pull          (Depending on config.)

28 N

Muzzle Velocity   (Depending on ammunition)

250 m/s

Muzzle Energy     (Depending on ammunition)

460 J


Length (Overall)| 205 mm
Slide Length 193 mm
Width (Overall) 34 mm
Slide Width 28,5 mm 
Height incl.Mag. | 140 mm 
Sight radius (Polymer) | 172 mm
Sight radius (Steel) 171 mm
Sight radius (GNS) 170 mm
Trigger Distance 72,5 mm