planktonadbc
Active Member
In the AR10 world you have multiple standards/patterns. Just to name a few: Rock River, Armalite, DPMS, SR-25, and Fulton. The standards/patterns are not interchangeable, therefor some companies like PSA do not say what standard/pattern they use.
I think your comment nailed it. I couldn't put it into words. "Fitment issues" , never sounds good.. Thank you!