This is the best picatinny rail quick detach sling mount that fits onto any standard 1913 MIL-STD Picatinny rail. The Picatinny Rail QD Sling Mount is low profile, lightweight, and features a compact design that allows for flexible mounting onto your Picatinny Rail handguard or quad rail. The QD Picatinny Rail Sling Mount is made of high-quality reinforced polymer with a steel QD sling socket, and all mounting hardware is included. The Picatinny rail sling mount dimensions are 1.5" L x 1.3" W x 0.8" D.