The GForce Arms GF1 (Model GF11220B / GF11220) is a 12-gauge, semi-automatic, tube-fed shotgun featuring a 3-inch chamber, a 20-inch or 18.5-inch steel barrel, a dovetail receiver, and a fixed black synthetic stock. It is designed for reliable utility, home defense, or field use. [1, 2, 3, 4, 5]