Clamp to any quick detachable sling swivel stud; Recoil springs to prevent damage to the stock and maintain point of impact; 2 Piece Standard legs are adjustable for height; Manufactured with heat treated steel and hard alloys with a black anodized finish; Quick detachable and clamp to the quick detachable sling swivel stud of any rifle; Weight: 12 oz.; Height: 13.5" to 23"