AimSHOT BSB22 Laser Bore Sight .22LR w/External Battery Box

22LR Laser Bore Sight Module with External Battery Box from AimSHOT is designed to make it quick and easy to bore sight your rifle chambered in 22 long rifle. Insert brass laser module into chamber and align scope reticle to match laser beam at 20 yards. Remove laser and proceed to the range for final adjustments at whatever range you want your zero.