LaserLyte Laser Bore Sight Deluxe - The Laserlyte MBS-DLUX Laser Bore Sight Deluxe Kit includes the Laser Bore Sight and all adapters to fit almost every caliber. Quickly and easily sight in your iron sights, laser sights or optics without going to the range or live fire. It fits .22 to .50 caliber and 12 and 20 gauge shotguns. Sight-in your firearms with ease. Fits .22 to .50 caliber and 12 and 20 gauge shotguns; Sight-in firearms with ease; Quickly and easily sight in your iron sights, laser sights or optics; Includes the Laser Bore Sight and all adapters to fit almost every caliber; Fits .22 to .50 caliber and 12 and 20 gauge shotguns;