"The LaserLyte Universal Laser Bore Sight Deluxe Kit gets your firearm on paper fast, saving you both time and money! Compatible with everything from .22 to .50 cal. rifles, this bore-sight kit can even be used with your 12- or 20-ga. shotgun with the included adapters. Compatible with any firearm with a barrel of at least 3"", this laser bore sight fits most pistols, as well. By simply sliding the laser into your barrel and lining your crosshairs with the dot at 25 yards, you'll be ready to fine tune with just a couple shots. A crosshairs adapter is included to ensure your rifle and crosshairs are level. The LaserLyte Universal Laser Bore Sight Deluxe Kit includes a laser bore sighter, scope and gun level, shotgun adapters, target, batteries, tool kit with screws, 4 adapters, and case. Gets you on paper quickly and easily Compatible with .22-.50-cal. rifles Fits pistols with a barrel length of at least 3"" Adapters for 12- and 20-ga. shotguns Comes with a scope and gun leveler Includes a toolkit with screws"