The CPS Center Pivoting Sing Mount fits Picatinny rail and provides multiple sling mounting points for a weapon without an existing mount. Lightweight and durable aluminum construction with a 360º pivoting sing mount. Captive nut can't be lost. Attaches with a flathead screwdriver or wrench. No gunsmithing required to attach or remove. Accommodates sling webbing up to 1.25". Lifetime warranty.