Trijicon and Primary Arms collaboration | The ACOG with ACSS reticle

The Trijicon ACOG is a legendary optic among many servicemen who have relied upon its durability and versatility during combat.  While I am lucky to count myself among that group, my time spent overseas was spent with the venerable TA01 which has been surpassed time and time again by more advanced offerings from Trijicon.  While researching optics I came across what seems to be a unique collaboration: a Trijicon ACOG using a non-Trijicon reticle.  In this case, it’s the ACSS reticle from Primary Arms.  While I can only speculate as to why Trijicon opened up its flagship optic to using a non-OEM reticle, this seems to be a one-of-a-kind partnership.

Given that we’re essentially looking at two products here, I want to cover some of the basics on each before diving into how they work as a whole.