Benelli M4 Tactical 12 Gauge 5rd Semi-Auto Shotgun, 18.5" Barrel, H2O Overview: The Benelli M4 H2O is a 12-gauge semi-automatic shotgun featuring the ARGO gas-operated system, an 18.5-inch barrel, and a 5+1 capacity. Built with a titanium Cerakote-finished receiver and barrel, it is paired with a black synthetic stock and a top Picatinny rail for compatible optics. Ghost-ring sights with an adjustable front sight provide a durable factory sighting system. Key Features: ARGO Gas System: Semi-automatic gas-operated action designed for reliable cycling. 12 Gauge Chambering: Chambered for 2A 3/4-inch and 3-inch 12-gauge shells. 5+1 Capacity: Holds up to five shells in the magazine tube plus one in the chamber. 18.5-Inch Barrel: Compact barrel length for a maneuverable overall configuration. Titanium Cerakote Finish: Receiver and barrel feature a protective titanium Cerakote finish. Ghost-Ring Sights: Rear ghost-ring sight paired with an adjustable front sight. Top Picatinny Rail: Supports compatible optics and accessories. Synthetic Stock: Durable black synthetic stock construction. Right-Hand Configuration: Designed for right-handed use. Specifications: Manufacturer: Benelli Model: M4 H2O Gauge: 12 Gauge Action: Semi-Auto, ARGO Gas System Chamber: 2A 3/4", 3" Capacity: 5+1 Barrel Length: 18.5" Receiver Finish: Titanium Cerakote Barrel Finish: Titanium Cerakote Stock Material: Synthetic Stock Finish: Black Sights: Ghost-Ring Rear / Adjustable Front Rail: Top Picatinny Overall Length: 40" Length of Pull: 14 " Drop at Heel: 2A 1/4" Drop at Comb: 1A 1/2" Weight: 7.8 lbs. Hand: Right Hand Applications: Range Training: Suitable for shotgun practice and familiarization at appropriate shooting facilities. Sport Shooting: Can be used for recreational shooting and other lawful shotgun sports. Firearm Collection: A distinctive M4 H2O configuration for Benelli enthusiasts and collectors. Optics Compatibility: The integrated top Picatinny rail supports compatible optics. Additional Features: Corrosion-Resistant Exterior: Titanium Cerakote finish on the receiver and barrel provides a durable protective coating. Compact Barrel Configuration: The 18.5-inch barrel helps maintain a relatively maneuverable profile. Adjustable Front Sight: Allows sight adjustment as part of the factory sighting system. Synthetic Furniture: Durable stock construction suited to regular use. ARGO-Operated Action: Benelli's gas-operated system powers the semi-automatic action. MPN: 11795UPC: 650350117950Check out our special deals on 12 Gauge ammo.