Correctly mounting a scope so it's level to the gun's receiver is critical to getting maximum accuracy from your rifle. A level scope means that the reticle will be perfectly aligned with the rifle bore. A level reticle is critical for long range accuracy. Balancing small levels on a score turret and gun receivers has been a commonly accepted practice for years. Not only is this a clumsy process, it's wrong. Level-Right Pro changes all that by simplifying scope alignment in 4 easy steps.A LEVEL RETICLE IS CRITICAL TO LONG RANGE ACCURACY Universally fits any gun type Levels reticle to gun, not the turret Shows immediate feedback on where you need to set the reticle Rechargeable flashlight included Most advanced optics mounting system ever created