The PTS Enhanced Polymer M-LOK QD Sling Mount is an entirely newly designed detachable QD sling mount. This allows you to push and pull the sling swivel alongside the rail at 10 degrees instead of placing the QD socket 90 degrees flat into the rail. Once installed, this reinforced polymer structured mount with a built-in steel QD cup retains an unobtrusive angle while slung, to avoid binding with other airsoft accessories and support hand while in the shooting position.