LaserLyte's FSL-0650-140 sub-compact laser sight fits virtually all pistols and long guns with Picatinny, Weaver and tactical rails. This ultra low-profile laser sight utilizes digital circuitry with a 650nm high-definition laser module, wireless compression switch, and adjustments for windage and elevation. Miniature in size and weighing less than one ounce with batteries, the sub-compact laser sight won't affect the firearm's ergonomics, adapts to many standard holsters and has a range of up to 500 yards at night. The claw-type mounting system securely attaches the laser to the pistol's rails or onto LaserLyte's rail adapters for Smith ' Wesson Sigma VE, and Heckler ' Koch USP, USP Compact, Bersa and Hi-Point series.