There's a number of anti-cant/leveling devices for scopes and rifles on the market, but the Knight's Armament Picatinny Rail Mount Anti-Cant Device is blessed with the KAC pedigree and design.
Mounted under the scope closest to the shooter's eye right off the pic rail. This ensures the mount is level to the gun, the glass vial is protected against damage by the objective lens over it, and provides quick feedback that your rifle is level. Essential for long range shooting where a little bit of cant can throw your shot left or right. Save the hassle of guesswork and mount the Anti-Cant Device on your precision rifle.
Knight's Armament Pic Rail Anti-Cant Device -- $70.21

Mounted under the scope closest to the shooter's eye right off the pic rail. This ensures the mount is level to the gun, the glass vial is protected against damage by the objective lens over it, and provides quick feedback that your rifle is level. Essential for long range shooting where a little bit of cant can throw your shot left or right. Save the hassle of guesswork and mount the Anti-Cant Device on your precision rifle.
Knight's Armament Pic Rail Anti-Cant Device -- $70.21

