Thought about posting this in the Armorer's forum, but I thought someone reading this forum might know:

Finally figured out why the USR wouldn't extract reliably -- the push pin securing the extractor in the bolt had snapped!  Any USR/AUG/AR experts that could tell me if there is any equivalent push pin in the typical AR armorer's bag o' parts, or do I have to buy the hard-to- find, dear-to-pay-for USR replacement parts kit?

Thanks in advance!