Surefire XR2 Compact Red Laser Weapon Light - Equipped with cross blocks for Universal, Picatinny and Sig rails, the 800-lumen Surefire XR2 Compact Weapon Light with Red Aiming Laser features two smooth parabolic reflectors for a powerful white light beam. The 635nm laser provides certainty when targeting. Ambidextrous momentary and constant-on switches make it easy to operate the light from either side. The LiPo battery powers the light for up to 30 minutes and can be removed for charging.