The Blackhawk Sling Adapter - Ambidextrous Mount allows weapons with AR/M4 collapsible stocks to hang flat against the body and eliminates "ears" that commonly interfere with the selector switch. This product has a fully ambidextrous design and a solid steel construction. It is built with a simple design that can hold up to repeated use without coming loose or wearing down. Proudly made in the United States, this adapter is compatible with most conventional sling hooks. Simply attach the adapter to the sling and receive security and peace of mind when carrying. Please note: this adapter is not compatible with some Colt rifles.