ProductDescriptionDesigned to Fit HK MP5 & HK94, Umarex MP5 .22 or Clone. Does NOT fit the GSG-5 Or MP5 SD .22 Models. - Precision Machined From Aircraft Grade Aluminum For Maximum Strength, One-Piece System. Easy Installation, No Gunsmithing Required. - Compact, with 3 integral accessory precision machined to Weaver Picatinny specs for a variety of mounting options, each with 12 mounting slots positioned at 3, 6, and 9 o'clock with an open top for use with iron sights. - Batteries, Pressure Switches And Mounting Hardware To Attach Them All At Once! Perfect for Attaching Bipods, Flashlights, Lasers etc... ! - Ergonomic Holder - Dual Pressure Switch/Cord Housing Slots for Ambidextrous Use Of Pressure Pads. End Cap Conceals Battery Storage and Controls Mounting.