AimShot MBS223 Features The AimShot MBS223 Big Hunting Bore Sight projects a red laser down the bore using an arbor system a method AimShot specifically recommends over chamber-based bore sights for any caliber application. This arbor-based design allows the system to be adapted across a wide range of rifle and pistol calibers simply by swapping arbors rather than requiring a dedicated bore sight for each chamber. The included modular battery pack powered by two AAA batteries extends laser run time to more than 20 hours far longer than many bore sights that rely solely on small button cell batteries. Shooters can also run the unit on the included button cell batteries alone for a more compact setup when extended runtime is not needed. Built in black the MBS223 is designed to withstand the bumps and handling that come with regular use at the range or in a gunsmithing shop. AimShot positions this system as more accurate more durable and longer lasting than comparable bore sighting tools on the market citing its superior design over simpler chamber-based alternatives. The red laser provides a bright easily visible reference point for aligning a scope s reticle with the bore axis cutting down significantly on sight-in time and wasted ammunition. For shooters who want a versatile long-lasting bore sighting solution across multiple calibers the AimShot Big Hunting Bore Sight Kit is available for sale at GrabAGun. Aimshot MBS223 Specifications Manufacturer: AimShot Model: MBS223 Type: Laser Bore Sight Color: Black Laser Color: Red Battery Size: AAA Run Time: 20+ Hrs Available At: GrabAGun