Impact Weapons Components is a company known for high quality light mounts including these two purpose built light mounts for the Benelli M4 shotgun. Available in either a 1913 Picatinny version for mounting of rail mount type weapons lights, or model that specifically mates up with Surefire Scout weapons lights. Both models allow for mounting of weapon lights either at the 1:00 or 11:00 position, and include ambidextrous limited rotation QD sling mounts eliminating the need for the factory sling loop. IWC's Rotational Clamp incorporating their proprietary Circumferential Locking Tab securely attaches the weapons light mount to the snap ring groove on the barrel hanger lug, Mfg: Impact Weapons Components