You want to make sure your rifle or gun always on target. Then this laser bore sighter can help you adjust your accuracy.?This bore sighter complete with arbors for using with many different calibers of firearms from .15 all the way up to .55 caliber.

• Includes laser aiming device, batteries, storage case and 5 barrel adapters to fit most any barrel from .15 to .55 caliber
• laser output power = Less Than 5mw
• Material: aluminum
• Wavelength = 635-655nm