beretta 93r
A burst-fire adaptation of the semi-automatic Beretta 92. Added to the basic Beretta 92 frame were a folding foregrip and enlarged trigger guard, six-vent muzzle brake, detachable shoulder stock for steadier firing in three-round burst mode, and an extended 20-round magazine.
Robocop's Auto-9 is a modified version of this gun.
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References
This tag implicates handgun (learn more).