Magpul QD Sling Swivel Push-button quick-detach sling swivel for 1-1/4" webbing, compatible with QD sling attachment points. Manganese-phosphate finished steel. Combine with MS1 Sling for dedicated two-point sling, or with MS1 MS4 Adapter for two to one-point convertible sling. Made in U.S.A. center> E.A.R. Export Administration Regulations Controlled Product.