KDG's 30mm Sidelok Modular Optic Mount provides user-configurable options that made it one of the most versatile QD scope mounts available. Of course, you can quickly clamp it to any Picatinny receiver rail, then remove it just as fast, with one hand, simply by pressing the release button at the front. The Sidelok Optic Mount's innovative locking system makes it virtually impossible to unintentionally release the mount. Cam lock system ensures the Sidelok will fit all Picatinny rails, even those that are out of spec. The rings on the Sidelok Modular Optic Mount can moved forward or backward to avoid interference with objective bells, turret knobs, or magnification adjustm Mfg: Kinetic Development Group