Mossberg 940 Pro Tactical Semi Auto Shotgun in 12 Ga. The 18.5 in matte blue barrel (3 in. chamber) has an Accu-Choke system with a Cylinder Bore choke installed and a fiber optic front sight. The receiver is drilled and tapped and cut for dot style optic mounts. The black synthetic stock has spacers for LOP adjustment as well as cast and comb drop adjustments. It has a 7 round tube magazine. Barrel clamp includes an M-LOK mounting slots.