NQP1034 Features: * Bores sight * Most complete, accurate, and versatile system on the market * Comes with compact high quality nylon pouch to store and transport all of your boresights and arbors * Made from 100pct brass for the highest quality and durability possible * Slide boresight cartridge into caliber-specific sleeve in rifle chamber and laser dot isp rojected down exact centerline of barrelDiagramextremely accurate scope or sight adjustment * Minimum sighting range: 3 yards * Maximum sighting range: 100 yards * Battery: (3) LR41 batteries, 20 minutes continuous batter life Specifications: * Output power:<5mW Dimensions: * Wave length: 645NM Warranty: * 5 Year limited warranty