Originally Posted by
Failure2Stop
I found that FC worked as well as any other lube when dumped on top of existing lubes, but would get sticky after a while.
Thoroughly degreasing the parts prior to a dumping on FC was noticeably better.
Thoroughly cleaning, degreasing, and applying a few thin layers of FC worked the best for keeping carbon from adhering to parts and making clean-up with just a rag pretty fast.
I don't obsess over carbon on the bolt-tail, and it seems that FC reduces it, but it's always still there after a while.
Periodically adding FC to critical areas (cam pin, bolt carrier mouth, gas rings, chamber, locking lugs, ejector, firing pin, bolt catch, and FCG) keeps the gun chugging along very well.