Originally Posted By Triumphman:
I ordered a Premium "Madness" Upper Assembly on Feb 1. Can hardly wait.
How do I know when it arrives, I got a PSA Premium M4A1(what I ordered), compared to the PTAC Upper Assembly?
Is there any "Visual Differences" that can be quickly seen, to distinguish one from the other?
PSA Upper receivers sometimes / (most now i think) come with etched cross Cannons on the left side of the upper receiver.
barrel will be stamped PSA or Palmetto if its a PSA, PTAC wont. PTAC will just have 5.56 NATO 1/7(1/9) whatever twist.
Hope that helps.