The GForce Arms GF4 (brand part no. GF412MTG) is a semi-automatic 12 gauge shotgun built around an 18.5-inch barrel and an M-LOK-equipped aluminum forend, giving tactical and home-defense shooters a modern, accessory-ready platform. GForce Arms sets the GF4 up with fixed ghost ring iron sights for fast, reliable target acquisition, and the shotgun cycles both 2.75-inch and 3-inch shells, giving shooters flexibility in ammunition choice. With a 5+1 capacity and a design built around ease of accessory mounting, the GF4 fits home defense, tactical training, and general-purpose 12 gauge duty.

Key Specifications

• Chambered in 12 gauge.
• Cycles both 2.75-inch and 3-inch shells for ammunition flexibility.
• Fitted with an 18.5-inch barrel.
• Holds 5+1 rounds in the magazine tube and chamber.
• Action is semi-automatic for fast follow-up shots.
• Forend features an M-LOK accessory-mounting system.
• Uses fixed ghost ring iron sights for fast target acquisition.
• Includes a Picatinny top rail for mounting optics.
• Ships with factory Benelli Crio-style choke tubes.
• Overall length measures approximately 39.75 inches.

Frequently Asked Questions

What shell lengths does this shotgun cycle? Both 2.75-inch and 3-inch 12 gauge shells.

What is the magazine capacity? 5+1, meaning 5 rounds in the tube plus 1 in the chamber.

Can accessories be mounted to the forend? Yes, the forend uses the M-LOK mounting system for lights, grips, and other accessories.

Buy the GForce Arms GF4 12 Gauge Semi-Auto Shotgun

Get a modern, accessory-ready 12 gauge built for home defense and general-purpose duty. Browse our full shotgun selection and order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.