It sure seems that way sometimes doesn't it. There are just as many or more good ones out there as there are bad ones though!
wrong tense used there. WAS. There was a small number, perhaps 50 or so, at the start of the second run that were 0.017" too low at the rear of the magwell for the Gen3 Pmags stupid little anti-insertion tab.
We had to manufacture our own unique tooling to be able to machine in the extended track for the charge handle, underneath the rear hook. It looks on the TSR that they made the rear hook slightly smaller, which maybe just enough room for the bolt catch. I haven't seen one with parts in it though.
Thanks Shaun for pipping in. I appreciate the feedback and assistance for our mutual clients.
Class act!
JR