In the 20+ years that I've been an AUG owner, I've never once seen or heard of a broken or damaged bolt. In the AR sections, they are always talking about bolt life, durability, sheared lugs, cracked cam pin holes, damaged gas keys, etc., but I've never heard mention of similar issues with AUG bolts. Has anyone ever had any first hand experience with AUG bolt damage? How many rounds is an AUG bolt rated to last?