GMG-Global Military Gear Mako 130+ Lumens L.E.D Flashlight LED Tactical - Light Kit for FNH,FAL,Fiyar Scar,PS90,FS2000 Rifle-12/20 Gauge Shotgun with A 7/8" High quality 130+ lumens l. E. D. - Light emitting diode Aircraft grade aluminum t6 housing - o-ring sealed, waterproof and weatherproof Front serrated bezel for added self defense feature High quality push button tail cap. 2-cr123a batteries included Installs in seconds on a 7/8" weaver-picatinny rail no gunsmithing needed