POTD: First Field Sighting of Aimpoint COA R on a Carbine

Summary

This article details the first field sighting of an Aimpoint COA R red dot sight mounted on a JP Enterprises JP-5 9mm roller-delayed carbine. The optic was installed using a Spuhr RD-21153 mount, which provides a 39mm/1.53" height for absolute co-witness, and notes the ease of mounting the COA R via its A-Cut interface.