Submachine Gun M21
Caliber
5.56x45 mm
Twist rate
177.8
Number of grooves
6
magazine capacity
30 rnds
Barrel lenght
290 mm
Lenght overall/folded stock
825/575 mm
Weight
4 kg
Weight of magazine
0.35 kg
Rate of fire
600 +/- 50 rnds/min