Magpul Industries, MS1 Single Point Quick Detach Adapter, Fits AR Rifles Ranger Green

Combine with the MS1 Sling and Paraclip to provide two to one-point convertibility. Manganese-phosphate finished steel and reinforced polymer hardware with custom snag-free high durability 1-1/4″ webbing. Made in U.S.A.
Heavy-duty, push-button QD Sling Swivel
Strong and wear resistant
For fast transition between one-point and two-point configuration