Allen X-Ring Features The Allen X-Ring Laser Boresighter projects a precise laser dot down the bore of a firearm giving the shooter a reference point to align a scope or iron sights before ever firing a round. This pre-alignment step dramatically cuts down on the wasted ammunition and time normally spent walking shots onto paper during a fresh sight-in session. Built from steel for durability the unit includes a positive on and off switch that helps preserve battery life between range sessions. The boresighter s adaptable fittings allow it to fit .177 through .50 caliber rifles as well as 12 and 20 gauge shotguns making it a versatile tool across a wide range of firearms. The value pack includes a CR2-compatible LR44 battery and mounting screws giving shooters everything needed for quick assembly without hunting down separate parts. Because the boresighter mounts directly using included hardware setup takes only a few minutes before it is ready to use at the bench or in the field. This kind of fast accurate alignment tool is especially useful after mounting a new scope swapping optics between rifles or checking zero after a long storage period. Allen has built a reputation for affordable dependable range accessories and this boresighter continues that tradition for budget-conscious shooters. Allen X-Ring Specifications Manufacturer: Allen Model: X-Ring Caliber: Multi Color: Black Material: Steel Battery Size: LR44 Includes: Battery / Mounting Screws Available At: GrabAGun