Surefire 1640DF Scout Pro Flashlight, LED, 1500 Lumens, Black, 1913 Picatinny Mount installed, MLOK Mount included, Z68 On/Off Tailcap, SF18650B Micro-USB Rechargeable Battery Included M640DF-BK-PRO SureFire makes some of the finest Suppressors" Flashlights" Weaponlights; Lasers" Ear Protection; Firearm Components" and Tactical equipment on the market today.