Aimshot BS9MM Boresight Laser 9mm Laser Boresighter Cartridge 9mm Brass

The most complete, accurate, easy and inexpensive way to accurately bore sight your weapon. By installing a laser diode into a (.223 Rem. for rifle and 9mm, 30 cal. for pistol) and utilizing an assortment of arbors (except 9mm-- no arbor required), it is possible to bore sight virtually any caliber weapon.