Compatible with almost any firearm, the Streamlight TLR-1S Rail Mounted Tactical with Strobe creates extremely bright light for use at night or in dimly-lit situations. This tactical light has three settings (momentary, constant and strobing) and produces consistent illumination for up to 2.5 hours and with a peak beam intensity of up to a 12,000 candela. Made with a machined aluminum-sealed construction, this light is virtually indestructible, making it an ideal attachment for tactical operations. A rail grip clamp system allows for easy attachment and detachment without the use of tools and without having to put your hand in front of the muzzle.