The original and patented AimShot 223/5.56 laser bore sight module. Designed to make it quick and easy to bore sight your rifle chambered in .223. This laser is also the basis for the AimShot laser bore sight system and is used in conjunction with the AimShot Arbors to bore sight other rifle calibers (not included).  2 sets of batteries are included with the sale.
 
Insert brass laser module into chamber and align scope reticle to match laser beam at 20 yards. Remove laser and proceed to the range for final adjustments at whatever distance you want your zero. This bore sight is designed to save you money and get you on paper at 100 yards to do your final adjustments.
 
This is the system that AimShot recommends be used with our arbors for any caliber laser bore sighting. It is the most versitile and accurate system on the market, and should not be compared to any other chamber based bore sights. AimShot has the original patent on the chamber laser bore sight and still makes the best system. More accurate, more durable, longer lasting and functionally superior to any other system on the market. Used extensively by manufacturers in the industry, and the US military. The original and still the best. 
 
The AimShot laser bore sight system is designed around a single high quality laser, 223 for the rifle calibers, and a system of hollow arbors that are designed to fit over the 223 laser and fit in the chamber for other calibers. If you want to bore sight a 308, you would need the 223 laser and then the appropriate arbor (AR243 in this case will fit all 308 based calibers such as 243, 7mm-08, 338 Federal, etc). Being able to bore sight additional calibers by purchasing an arbor is much more cost effective.
 
You can convert the BS223 into the MBS223 by purchasing the MBP223 (Modular Battery Pack) that will allow you to utilize 2 AAA batteries in the external battery pack for 20+ hours of laser output. 
 
<5mW FDA Class IIIa laser
Includes 2 sets of L736/AG3 alkaline batteries