The AimShot Speed Aim Laser Bore Sight Module inserts into your gun's chamber and emits a laser through the barrel so that you can adjust the sights or scope to be on paper at 25 yards. This saves both time and ammunition when sighting in. The precision brass construction will not scratch the chamber of your firearm. This laser diode will work alone for the specified caliber, or with other available arbors (sold separately) to adapt the diode for use with other rifle calibers. The Speed Aim .223 Boresight includes 3 LR41 button-type battery cells and a vinyl storage pouch with hook and loop closure.
Features: - High Output 5mW Laser - Precision Machined Brass Construction - Accurate to within 3/4" at 30 Yards - Compatible with all AimShot Arbors That Use the .223 Diode