The Spuhr Angle Cosine Indicator interface is T651 machined aluminum and provides a perfect fit for most common ACI devices. The interface can be mounted directly to the side of the Spuhr ISMS or raised by use of Spuhr accessory spacers. The ACI interface is available in a QD model that allows you to remove the ACI from the interface rapidly in CQB situation where the device could be a hindrance. Mounting hardware included.
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