Brand N/A Model M3002 Quantity 2 piece(s) per pack Color Black Material Aluminum alloy Suitable Gun Type M4A1 M40 and other 22mm rail guns Specification 30mm caliber high quality aluminum alloy heighten version of SKU 198537; Perfect for fixing 22mm rail guns and flashlight or other laser scope. Packing List 2 x Gun mount brackets 1 x Hex wrench