On M4C, guys who do work for other manufacturers are quick to point out that PSA buys reject parts. Unsurprisingly, when asked for proof it's crickets. The only 'substantive' reply I've every received is
it's common knowledge within the industry..
If you look at the data, PSA makes and sells a lot of AR's:
https://www.atf.gov/resource-center/...t-report-afmer
BCM - 5,681 rifles mfg - 17,130 misc f/a mfg (serial numbered lowers, etc.)
Colt - 23,995 rifles mfg - 1263 misc f/a mfg (serial numbered lowers, etc.)
PSA = 60,438 rifles mfg - 289,537 misc f/a mfg (serial numbered lowers, etc.)
Aside from that, they probably sell several times the number of LPK's that, as an example, BCM does.
There are obviously QC problems that can go along with quantity sales; OTOH, I'd imagine that if you were buying triggers and hammers from Schmid, that guy that buys 60,000 probably gets a better price then the guy buying 5,000
PSA and BCM (as an example) obviously have different business models. PSA is figuratively making Ford Focuses, and BCM is making Mercedes A Classes. At the end of the day they both get you there. The Indian still makes more difference than the arrow.