The DeathGrip UltraLite mounts to any Arca-Swiss Tripod Head with the included adapter. The Arca-Swiss adapter can be removed exposing 1/4-20 or 3/8-16 threaded holes for mounting your own Tripod Head plate or simply threading onto a Tripod Center Post. - Features - Magnesium construction - Fits sporter rifles quad-rail AR platforms and crossbows - Arca-Swiss compatible - Switcheroo compatible - Weighs less than 1lb - Non-marring rubber jaws - Patent-pending dual jaw closure design - Dimensions 4 x 5 x 4