I dont think so.
AFAIK, the AR gas vent is effectively just a hole in the receiver that lets excess chamber blowback vent away from your face.
It shouldn't really have anything to do with gas drive or cycling.
The only other thing to swap is the BCG with a known good milspec one.
The FZ coating does add thickness/texture and could change the amount of gas leakage around the piston.



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