FEATURES-M-LOK 1" Flashlight Mount-100% CNC machined out of 6061 billet aluminum-1.03" internal diameter designed to fit any 1" flashlight-Mount can be placed at 1, 5, 7, & 11 o'clock positions-Adjusts in 1/2 slot increments for precise accessory placement-No access to back side of the rail is requi..