AimShot Laser Bore Sight Features The AimShot Laser Bore Sight projects a red laser down the bore to give a quick repeatable reference point for zeroing a riflescope or red dot sight before ever firing a shot. Built for the .223 Rem cartridge it also functions in .300 AAC Blackout chambers giving owners of multi caliber upper receivers a single tool that covers both chamberings. Using a bore sight this way saves ammunition and time at the range since the shooter can dial the optic close to zero before confirming with live fire. The arbor style design seats directly into the chamber for a consistent repeatable alignment every time it is used. Power comes from two included sets of L736/AG3 batteries giving more than 20 hours of laser run time across many zeroing sessions before a replacement is needed. The red laser is easy to see at typical sighting in distances making it simple to walk the reticle onto the projected dot without guesswork. AimShot backs the bore sight with a one year warranty reflecting confidence in its build quality and everyday reliability. For shooters setting up a new optic or confirming zero on a rifle chambered in .223 Rem or .300 AAC Blackout this laser bore sight is available for sale at GrabAGun as a simple time saving range tool. Aimshot Laser Bore Sight Specifications Manufacturer: Aimshot Model: Laser Bore Sight Compatible Hosts: .223 Rem .300 AAC Blackout Laser Color: Red Battery Size: L736 / AG3 Battery Life: 20+ Hours Includes: Batteries Caliber: .223 Rem Available At: GrabAGun