This is a high quality CenterPoint red laser boresighter. It's battery-powered and has 6 adapter fittings for .17 to .50 caliber gun (air rifles, air pistols, firearms & airsoft guns). It also fits 12-, 16- and 20-gauge shotguns. Stop wasting time and ammo manually sighting-in your targets!

• CenterPoint red laser boresighter
• Fits .17 to .50 caliber guns
• Also compatible with 12-, 16- and 20-gauge shotguns
• Works with air rifles & air pistols with minimum 3.8-inch barrel
• 6 adapters
• 6.5"x0.5"x0.5"
• Includes batteries
• Do not use on guns that have muzzlebrakes, silencers, fake silencers, shrouds or noise dampeners.