Snake-Eyes
Master
PSA, PSA upper, PSA barrel, PSA handguard and PSA internals from what I can tell.
Sent from my Pixel 3 XL using Tapatalk
If you Really wanna know, send PSA an email with the specifics, maybe even attach a closeup photo of the lower with the serial number and a piece of paper with your email address and the date written on it for verification of ownership. Ask them if it was a full build or a lower.
Maybe they'll help you out in a few weeks...