148663 Quantity 1 piece(s) per pack Color Black Material Aluminum alloy Suitable Caliber .220~.270 / .280~.349 / .350~.434 / .435~.50 Specification Wavelength: 630~680nm， Power: <5mW Other Features: Water resistant and shock resistant Packing List 1 x Red laser bore sighter (3 x AG13， included)   1 x Screwdriver   1 x Screw   4 x Adapters   1 x Hex wrench   1 x English user manual