Sightmark SM39019 Boresight Red Laser for 44 Mag Brass Includes Battery Pack & Carrying Case

Useful for initial sighting your pistol or as a training aid for quick draw” drills the Sightmark .44 Magnum Boresight offers a quick and easy way to sight in your .44 Magnum pistol. Range for sighting is 15-100 yards with an operating temperature at -10 to 50 F/C. Includes a carrying case and three (3) AG3 batteries.”