Help PSA upper.

[edgerly779]

San Fernando Valley and he really knows about these problems. I am old enough to equate him with Jim Boland master gunsmith and mad scientist.

[JWHuey]

What kind of PSA upper is it (CHF, premium, freedom, PTAC)?

[rallo87]

Everyone thank you very much for your input and concern. I purchased a chamber brush and did about 100 full rotations in the chamber. Keep in mind this was a new upper that had 15 or so rounds through it by me so I never tried it before. I did a function test today and it runs perfect. I'm assuming it had a lot of finish in it or residue from test firing.


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[max210]

did you break the upper in? i had similar issues recently and was told by a very local LGS that I need to break it in, especially an SS barrel. There are instructions online on how it, but basically you fire 5.56 and clean after each shot. I haven't done it myself yet.