AimShot Modular Laser Bore Sight 223. The latest AimShot 223 laser bore sight with Modular Battery Pack. This version of our proven 223 laser bore sight adds the modular battery pack that allows you to remove the small watch batteries and end cap (included) and replace with it with an external battery pack that contains 2 AAA batteries (included) that will give you run times of 20+ hours for your laser bore sight. The latest modular bore sight includes BOTH the smaller watch batteries and end cap as welll as the latest external battery pack that runs on 2 AAA batteries for 20+ hours of laser run time. The external battery pack has a small magnet on the side to hold it to the receiver and allow you extra time to get your optics dialed in. AimShot always recommends removing the bolt or locking it back solidly to prevent accidental closure and breaking the wire or bore sight. This the laser that AimShot recommends use with any of our arbors for bore sighting other calibers. Specifications for AIMS MBS223 MODULAR BORE SIGHT 223: Mfg Item Num: MBS223 Supplier SKU: 05831 Category: BORE SIGHTERS AND ARBORS Type: Bore Sighter Caliber: 223 Remington Style: Laser Quantity: 1 Features of AimShot Modular Laser Bore Sight 223: Can be used with standard (L41) or external battery box with 2 AAA batteries Can be used with optional AimShot arbors that utilize the .223 diode Designed to make it quick and easy to bore sight your rifle chambered in .223/5.56 Maximum sighting range: 100 yards Battery: AAA (2) or L41 (3) Comes with two AAA Panasonic batteries Package Contents: AimShot Modular Laser Bore Sight 223 The AIMS MBS223 MODULAR BORE SIGHT 223 is a quality addition to the AimShot lineup. For more great deals on Bore Sights by AimShot please browse our AimShot Bore Sights page. Modular Bore Sight 223- 650nM with external and stardard batteries