Angle Cosine Indicator (ACI)
The Angle Cosine Indicator (ACI) is an indispensable sniper tool for long distance precision shots when aiming up-or downhill. The ACI helps you to easily calculate and correct the gravity‘s effect on your bullet‘s trajectory. The bubble level enables the shooter to understand if the gun is completely level. Our ERA-TAC-mount with ACI and bubble level can be easily attached to our UNIVERSAL interface. It is not necessary to alter the position of the scope.