the surefire x400 is a powerful led weaponlight with an integrated red-laser sight mounted below its solid-state led. its versatile beam and highly visible laser are effective in close and long-range applications, making the x400 an ideal choice for law enforcement, military, and self-defense applications.
the x400's recoil-proof led has no filament to burn out or break and it generates 110 lumens of blinding white light—and continues producing tactical-level light for 2.4 hours on a set of batteries. a total internal reflection (tir) lens gathers virtually all of the led's light and projects it forward creating a tight beam that reaches deep into the darkness but has enough surround beam to accommodate peripheral vision. the red-light laser features an output of 5 milliwatts at a wavelength of 635 nanometers, making it nearly twice as bright—and much more visible—than the nearest competitor. and because the laser sight's adjustment uses nylok® screws, which won't back out from the effects of recoil, the x400 rarely needs to be re-zeroed.
the x400 features a hard-anodized aerospace-grade aluminum body and a pyrex® window that protects the x400's electronics while o-rings and gaskets make it water resistant. and the x400 attaches to both universal and picatinny rails via its proprietary rail-lock™ system, and comes with adapter plates for both. an ambidextrous toggle/push switch provides ergonomic, fail-safe operation, and optional surefire grip switches allow precision control without altering one's grip on the weapon. some firearms may require an adapter mount.