Made from aero-space grade aluminum, LaserLyte’s Sub-Mini utilizes digital circuitry with a hi-definition laser module. A pulsing indicator allows for continual use even when the battery is low. The claw-type mounting system is designed to fit virtually all pistols with Weaver/Picatinny type rails. And don’t forget the adapters for firearms equipped with grooved rails! (Special adpaters needed for HK and Sigma).