The AimShot Universal Rifle Laser Bore Sight Kit is an outstanding choice for getting your Rifle sighted in quickly and efficiently. Now you can get your Rifle sighted in when installing new sights, optics, or enhancers. Get your Rifle on target faster than ever before with the AimShot Universal Rifle Laser Bore Sight Kit. Features Wavelength 650nM Output Power less than 5MW Battery 2x AAA batteries Battery Life 6-15 Minutes Construction brass Includes Includes the BSB22320X boresight Includes the AR243, AR264, AR3006, AR3030, AR762, AR12GA arbors Fits the Following Calibers .243 Win arbor .264 Win arbor .30-06 arbor .30-30 arbor 7.62 X39 arbor 12 Gauge arbor Aimshot BSB22320X w/AR243/264/3006/3030/762/12GA BSB22320X w/AR243/264/3006/3030/762/12GA