MAKO GMG Global Military Gear 130+ Lumens L.E.D Flashlight LED 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 & Battery - Features Front Serrated Self Defense Bezel