A3 Industries Quick-Disconnect Socket Sling Mount W/Hardware 360 Degrees Steel Black. but will also fit anywhere you can mount it with a 8 fastener. Aluminum sockets tend to wear with use because the mating component uses hardened steel balls for retention. For this reason we manufacture all of our sockets from steel. Socket is 360 degree rotation. Specifications for A3 Industries Quick-Disconnect Socket Sling Mount W/Hardware: Manufacturer: A3 Industries Color: Black Fabric/Material: Hardened Steel Features of A3 Industries Quick-Disconnect Socket Sling Mount W/Hardware Ships with the following hardware for mounting to just about anything: Steel 360 degree rotation QD socket #8-32 x 1/4in screw; #8-32 x 3/8in screw; #8-32 x 7/16in; screw; #8-32 x 1/2in; screw; #8-32 serrated lock nut; Package Contents: A3 Industries Quick-Disconnect Socket Sling Mount W/Hardware A3 Industries QD-001: Quick-Disconnect(QD) Socket Sling Mount W/Hardware 360 Degrees Steel Black