Trust The Standard. Popular with law enforcement and military operators around the world, the Rail-LockA(R) 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 plus surround light, an 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.Features: The best-selling SureFire handgun WeaponLight, now generating 1,000 lumensRail-LockA(R) system permits rapid attachment to and removal from rails on pistols or riflesIntuitive switching allows instant activation without altering grip; Accessory switches for pistols and tape switches for long guns are available.Recoil-proof high-performance LED produces 1,000 lumensCustom TIR lens creates smooth, far-reaching light with a larger center spot beam that is ideal for close- to medium-range engagementsIntegral ambidextrous momentary- and constant-on switching provides easy instant activationAttaches securely to both Universal and Picatinny accessory railsIPX7 waterproof to 1 meter for 30 minutesHigh-strength aerospace aluminum body is Mil-Spec hard anodized for extreme durabilityAccepts optional pressure-activated DG and XT remote switches for precision control without altering grip on weapon