Benelli SuperNova Tactical Shotgun 12GA 18.5″ Pistol Grip #20160Sales In Canada Benelli SuperNova Tactical #20160 The Benelli SuperNova Tactical #20160 is a rugged and reliable 12 gauge pump action shotgun designed for tactical, duty, and defensive applications. Featuring an 18. 5 barrel, 3 1 2 chamber, and factory pistol grip stock, the SuperNova delivers legendary Benelli durability with modern ergonomics. Gauge: 12 Gauge Chamber: 3 1 2 (supports 2 3 4, 3, and 3 1 2 shells) Barrel Length: 18. 5 Action: Pump