MT61172-140LP AimSHOT Quick Release Low Profile 140mm Picatinny Rail mount - Low Profile Quick Release Picatinny Rail Mount. 140mm long and 10mm rise mount to allow you to quickly remove or attach items to picatinny rail. Ideal for scopes or other longer optics with smaller rail mounts where you want the item mounted closer to the centerline of the bore. Mount your scope for range/varmint shooting, the remove and go back to your reflex sight for home defense. If you need to mount an item with a plastic mount (i.e. most vertical grips) the standard height quick release MT61172 is best.