Aimshot bore sight.17hmr w/ external battery box redFEATURES–Caliber: .17HMR-Provides the extended run time that the traditional bore sight cannot-Offers the most economical solution for all your bore sighting needs-Intended for use of only open chamber applications Other Features: Battery pack utilizes 2 aaa’s approx.20 hours in runtime wavelength 650nm wire approx 3″ in length
