beretta 93r
The Beretta 93R is an Italian selective-fire 9×19mm machine pistol, designed and manufactured by Beretta in the late 1970s. Its design is based on the Beretta 92. The weapon features a foldable vertical foregrip, an enlarged trigger guard, six-vent muzzle brake, and a detachable shoulder stock for steadier firing in three-round burst mode. It accepts extended 20-round magazine.
Robocop's Auto-9 is a modified version of this gun.