The Strike Shotgun Barrel Clamp for 12-Guage helps to add strength and rigidity to your feed tubs with the ability to add accessories and a sling point. One side of the barrel clamp features a Picatinny (Pic) rail to mount a weapon light or other accessory. On the other side you have a 360° free swivel quick detach (QD) socket for an easy sling attachment point.