AimShot MBS223 Features The AimShot MBS223 Hunting Bore Sight Kit projects a bright red laser down the bore to give an immediate visual reference for adjusting a scope or iron sights without firing a shot. Because it uses an arbor system rather than a caliber specific chamber insert one kit works across a wide range of rifle calibers saving the cost and hassle of buying a separate bore sight for every rifle in the safe. AimShot specifically recommends this arbor based approach as more accurate and more durable than chamber based bore sighting tools since it avoids the wear and tolerance issues that come with inserting a device into the chamber itself. This makes the MBS223 a versatile tool for hunters who own multiple rifles in different calibers. A modular battery pack extends the red laser s run time to over 20 hours giving plenty of working time to dial in a zero across multiple sessions without swapping batteries constantly. The unit is flexible in how it is powered running on either the included button cell batteries for a compact footprint or two AAA batteries in the modular pack for extended field use. This dual power option means the kit can be configured for quick truck gun checks or longer range sessions where more run time matters. Housed in a black finish for durability the AimShot MBS223 Hunting Bore Sight Kit is a practical long lasting tool for getting any rifle close to zero before live fire confirmation. Aimshot MBS223 Specifications Manufacturer: Aimshot Model: MBS223 Type: Laser Bore Sight Color: Black Laser Color: Red Battery Size: AAA Battery Life: 20+ Hours Available At: GrabAGun