The best-selling SureFire WeaponLight, now generating 1,000 lumens Rail-Lock® system permits rapid attachment to and removal from rails on pistols or rifles Accessory switches for pistols and tape switch for long guns available. Activate without altering grip Trust The Standard. Popular with law enforcement and military operators around the world, the Rail-Lock® version our best-selling WeaponLight now delivers a stunning 1,000 lumens of LED-generated output. Focused by a precision TIR lens, it creates a far-reaching high-intensity beam with a larger center spot that is extremely effective combination for close- to medium-range engagements. You can count on the X300U-A to help you positively identify threats at significant distances while temporarily impairing your adversary’s vision. It also provides extensive peripheral illumination for maintaining situational awareness. Ambidextrous switching provides one-finger control of momentary-on or constant-on activation. Its rugged, aerospace aluminum body is Mil-Spec hard anodized for scratch and corrosion resistance and sealed to make it weatherproof. It’s also IPX7 waterproof to 1 meter for 30 minutes.The X300U-A delivers a standard of excellence you can trust.