Surefire M640U Scout Pro Flashlight, LED, 1000 Lumens, Black, 1913 Picatinny Mount installed, MLOK Mount included, Z68 On/Off Tailcap M640U-BK-PRO SureFire makes some of the finest Suppressors" Flashlights" Weaponlights; Lasers" Ear Protection; Firearm Components" and Tactical equipment on the market today.