The FAB Defense QD Weapon Sling Swivel will mount to any GLR16, GL-Shock buttstock or to any quick release socket. These Swivels by the specialists at FAB Defense are made with an incredibly durable CNC machined steel with a hard anodized finish. Extremely lightweight, the FAB Defense Rifle Sling Tactical Aluminum Swivel will hardly be noticed on your rifle. These Swivels are easily attached using a swivel clip strap attachment. The FAB Defense Gun Sling Tactical Swivel can be used with either the left or right hand, thanks to its ambidextrous design. Specifications for FAB Defense QD Weapon Sling Swivel: Manufacturer: FAB Defense Color: Black Fabric/Material: Durable Steel Condition: New Weight: 0.026 lb, 12 g Length: 13 mm, 0.51 in Height: 0.79 in, 20 mm Width: 1.34 in, 34 mm Features of FAB Defense QD Weapon Sling Swivel, 1S0-SV-SLS: Mounts to any FAB Defense QD port. Secure mechanism will not break free accidentally. Easily attached with swivel clip type strap attachment. Ultra Lightweight. Simply push into insert hole until it locks into place. Easy detach by a push of a button. Ambidextrous. Made of durable anodized CNC machined steel. Package Contents: FAB Defense Weapon Sling Swivel, QD, 1S0-SV-SLS