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Discussion Starter · #1 ·
Recently replaced a recoil spring on a rod, German guide rod and BCG, the kind where the recoil spring rod snaps into the BCG via nylon rings.

When manually cycling it, I can hear the recoil spring rubbing against the bcg, sounds like coils of the spring are rubbing against the retaining notch in the BCG.

Only fired 40 rounds, 1 FTE, that's it (round casing ended up being the extractor)
 
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