SureFire M340DFT-BK-PRO: Dual Fuel Performance for Picatinny and M-LOKThe SureFire M340DFT is the ultimate long gun light, boasting SureFire's exclusive Dual Fuel technology. This means it can be powered by either the included SF18650B rechargeable lithium-ion battery or 123A batteries (not included). With the SF18650B battery, it delivers a blinding 95,000 candela beam, illuminating targets up to 616 meters away. With a 123A battery, it still offers an impressive 55,000 candela beam at distances of 469 meters. Regardless of the power source, the M340DFT excels in long-range target identification. Attaching the M340DFT to your weapon is a breeze, thanks to SureFire's Scout Light Pro Low-Profile Mount (LPM). This mount allows you to optimize the light's position relative to the rail and other rail-mounted accessories. It's rugged and compatible with both MIL-STD-1913 rails and M-LOK interfaces. To activate the M340DFT, simply use the ZE68 momentary/constant-on push-button switch. It's also compatible with a wide range of remote tape switches for added convenience. Whether you're a professional or an enthusiast, the SureFire M340DFT is a powerful and versatile lighting solution for your long gun. Features of the SureFire M340DFT Weapon Light: Precision reflector produces a high-candela, far-reaching beam ideal for target identification at long distancesVersatile Low-Profile Mount (LPM) allows the user to optimize the light’s position relative to the rail and other attached firearm accessoriesMil-Spec hard-anodized aluminum body and tempered window make it light rugged, durable and combat readyActivation via ZE68 momentary/constant-on pushbutton switching with protective shroudCompatible with a host of remote tape switches SureFire M340-Pro Dual Fuel Scout Light w/Picatinny Rail/M-LOK Swivel Mount M340DFT-BK-PRO