The M2 Tactical uses Benelli's inertia-driven system rather than gas operation, making it simpler and lighter than the M4 while remaining reliable with a wide range of loads. Type: Shotgun Action: Semi-Automatic Caliber: 12 ga Capacity: 7 Year introduced: 2000, Italy Weight: 96 oz Overall length: 39.75" Status: Active Intended use: Law Enforcement, Home Defense, 3-Gun