Angle Cosine Indicator

***** 5.0
Read reviews (3)

CODE: 1306


In stock

The Angle Cosine Indicator is essential for accurate shots on inclined terrain. From Sniper Tools.

I even use an angle cosine indicator on my 100 yard TAC 15i crossbow. -Len

Angle Cosine Indicator

The ACI is a vault solid, water resistant precision instrument. It is quiet and made from aircraft grade aluminum, which is anodized in a flat black color. The Cosine numbers are laser engraved onto the body in five (5) degree increments. The lens is shatterproof, shockproof and resistant to chemicals such as acetone and cleaning solvents. Completely mechanical, there are no batteries to fail, and no electronics to fail.

This Angle Cosine Indicator from Sniper Tools does not include a mounting system.
It can be mounted to the Defensive Edge Angle-Cosine or Angle-Degree Indicator/Anti-Cant Device Combo Mount.
It can be mounted to the Accu/Level Articulating Scope Level By Flatline Ops by using the Flatline Ops Strong Arm. Or it can be mounted to a picatinny rail using the Nightforce Rail Mount


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Excellent product. Good quality construction and finishing. It's a "must" for serious hunters, where angle shooting is needed.


I mounted this to a Nightforce 30mm Ring Cap Bubble Level with ADI Mount (Part#: A129) on Nightforce Rings and a TAC-50.

It mounted easily & securely, adjusted easily and appears to be well made.

For long range shooting, I think the built-in leveling beebee is somewhat imprecise, but seems to work fine and would serve as a nice backup should my bubble-level be damaged.

It handles the recoil from the weapon with apparent impunity and the provision of the actual cosine of the angle as opposed to angle itself - simply removes one more step during doping.


Great backup. Makes the math easy