SightMark Laser Boresight 223/5.56 SM39001

The Chamber Laser Boresight gets you on target quickly without wasting a single round. Simply drop the boresight into your chamber like a standard cartridge, and the bright 632-650nm red laser will show you exactly where your rifle is aiming. When done, it ejects just like an empty casing, clearing your chamber allowing you to go straight to live fire, without the risks of forgetting a bore-mounted sight.