If a part is broken or worn, or has a flaw, absolutely replace it.That makes sense! I suppose there are enough spares that in the worst case it should be easy enough to get replacement parts. Do you recommend I just replace these outright before firing? I feel that even if I relube a potential burr could be disastrous.
But make sure you inspect and relube first.
Parts can be sourced from fulton armory or ebay as a last resort