Quick view Sightmark Sightmark SM39016 Laser Boresighter Cartridge 40 S&W Brass $29.97 Tested and recommended by the national tactical officers association, the sightmark boresight offers a quick and easy way to sight in your.40 smith & wesson pistol.The bore sight can be used as a training aid for "quick draw" drills.Includes a... Compare Add to Cart