Designed to be used with an external battery pack our battery bore sight systems provide the extended run time that the traditional bore sight cannot. Allowing the operator 20+ hours of run time off 2 AAA batteries this system offers the most economical solution for all your bore sighting needs. The external battery bore sight system is intended for use of only open chamber applications. Severing the wire will render the laser inoperable. The .223 and 30 versions are fully functional with the AimSHOT arbor system giving the operator more versatility out of their unit. This 30 carbine laser bore sight is the red laser that is used as the base for pistol caliber arbors (40, 44, 45, etc) that can function with an open action (can not be used in revolvers or most semi auto handguns). Ideal for the new pistol caliber carbines that are popular. 
 
This product is the 30 Carbine laser bore sight with the external battery pack. Included in the package are the 30 carbine red laser with external battery box, and 2 AAA batteries.