u/2ekeesWarrior

Got myself an Olympic AR that sat in a safe for some time. Shot 4 mags through it and was satisfied with the purchase. Took it home, slipped out the bolt and and gave everything a clean and oil as it had sat for 15ish years probably. Now it doesn't like me anymore. Any clue whats suddenly causing this crimping? Also of note it is attempting to feed without ejecting and one of the times it caught the casing (the standing one) and tore right into it. Taking it apart now, any ideas what could be causing this?

Feet included, as is tradition.