NIB Benelli M4 Tactical shotgun. Now the same Benelli M4 used by the U.S. Marine Corps can be your home defense shotgun of choice. When the U.S. Marine Corps went shopping for a shotgun, they bought the M4 — the 12-gauge shotgun that functions the first time, every time. Its unique Auto Regulating Gas Operated (A.R.G.O.) system developed by Benelli engineers has dual stainless steel, self-cleaning pistons located just ahead of the chamber that operate directly against the bolt assembly. Make: Benelli Model: M4 Tactical SKU: 11707 Action: Semi-automatic Caliber: 12 gauge Chamber: 3" Sights: Adjustable ghost ring rear - fixed blade front - Picatinny rail installed on top of receiver for optics Weight: 7.8 lbs Capacity: 5+1 Barrel Length: 18.5" Overall Length: 40" Choke: Modified Crio Choke Stock: Synthetic pistol grip Gun pictured may be a stock photo and/or may not be the exact gun purchased. So wood grain, serial number, hand orientation, caliber, etc shown may vary slightly. Let us know if you would like more pictures or info on this or any of our items. We have over 4000 new and used firearms in stock if there is something else you're looking for! We DO NOT charge extra for credit cards!