184576 Quantity 1 piece(s) per pack Color Copper Material Brass Suitable Gun Type Suitable for .243 / .308 Win / 7mm-08REM Specification Wave Length: 635~655nm (red); Power: 5mW; Power Supply: 3 x AG3 (included); Waterproof， shockproof Packing List 1 x Red laser bore sighter 3 x AG3 batteries 1 x English user manual