This sub machinegun uses 9mm or 40 SW ammunition, it exists an some variants with integrated silencer, fixed buttstock and compact versions it uses 20 or 30 rounds magazines and has an high rate of fire
Soldier of fortune
, this weapon is a compact assault rifle with a large magazine of 40 cartridges. It fires 5.56 mm ammunition with moderate accuracy. In the game it's called "Raptor SMG" and have a much longer magazine than this mini variant.