Weaver style clamp on mount will fit most weaver & Picatinny type rails. Includes mounting toolFully Adjustable for Windage and Elevation. Includes adjustment toolMomentary End Cap Switch and it also comes with Remote Pressure SwitchAll Aluminum Construction. Black Anodized finishUses 1 CR123A Lithium Type Battery (Included)Specifications:Beam Color: GreenLaser Output: 5 mWWavelength: 532 nmAttachment/Mount Type: WeaverBattery Type: CR123AFabric/Material: AluminumIncluded Accessories: Weaver Mount