Ultimate Arms Gear FDE Flat Dark Earth Tan 90+ lumens Flashlight Tactical - Light Kit For AR15, AR-15, M4,M-4, M16,M-16 Rifle With A 7/8" Weaver-Picatinny Rail Includes: Weaver-Picatinny Ring Mount, Push Button Tail Cap, Pressure Switch & Battery - Features Front Serrated Self Defense Bezel