50 rounds before failure - Aero Precision AR15 5.56 PRO Series Bolt Carrier Group (BCG)

Literally cleaned, oiled, and placed it in my most recent build. All aero precision parts. Went to sight in the rifle and 50 rounds in have a stoppage. Clear the gun and notice an extra spring and metal piece in my mag. Turns out the ejector and spring just decided they didn’t wanna be in the bolt anymore. Needless to say I was pretty annoyed after forking over the extra money for the Pro model. Normally I love aero parts but this was shoddy QA on a “premium” part. Will be returning this. I’m giving this BCG 1/5 only because of fit and finish, and I can’t do zero stars. Unscheduled self-disassembly is not a feature I recommend in a BCG.