Sight your firearm in faster, saving your time and money with the Sight-Rite Deluxe Laser End of Barrel Bore Sighter. This unique adapter kit provides stable alignment producing accurate bore sighting results. FEATURES For use on .17 to .50 caliber Alignment target and storage pouch included Patented design No metal on metal contact Will not scratch the finish of the barrel or damage your rifling Instruction and batteries included Mfg: Shooting Made Easy