TS Platform and SSS Structure for Durable and Responsive Internal Adjustments! Clear and Extra Bright Laser Beam! Precise and wide Range Windage and Elevation Adjustments for all Firearms! Universal Clamp-on Mounting Deck to fit most Tactical Firearms with or without Rail Slots! Ambidextrous Push Button Switch and Remote Pressure switch, the best of both worlds! Hard Anodized Finish for Wear Resistance! Six AG-13 (LR44) Alkaline Button Cell Batteries! (unit uses 3, and 3 free extra!) Aim and Instant Lock on Targets to Enhance Your Shooting Accuracy and Performance! Most Versatile Laser for A Wide Range of Pistols, Shotguns and Rifles! Free metal case for storage! 3 Allen wrenches included.