SureFire, LLC's 1,000 lumen X400U and X400UH models will be available in the both red and green laser versions for holster compatible and non-holster compatible lights. The SureFire X400U is the finest duty-grade handgun WeaponLight and laser combination available today. The X400U, features 1,000 lumens of stunning white light focused by a Total Internal Reflection (TIR) lens to produce a tight beam with extended reach and significant surround light for peripheral vision. Located below the primary light, the X400U's 5-milliwatt laser sight emits a high-visibility beam, perfect for non-standard shooting positions and use in low-light scenarios. The laser's aiming adjustment mechanism uses Nylok® screws that won't back out from the effects of recoil, which means it rarely needs to be re-zeroed. The X400U is activated via ambidextrous switching located at the rear of body, providing one-finger control — press the switch on either side for momentary-on activation, flip up or down for constant-on activation. OptionalDG grip switches(for handguns) permit the X300U to be activated with one hand, without altering your grip on your weapon.