just installed a charging handle I received form another member of the forums, racked it probably 10 times and suddenly the handle was stuck and wouldnt come out, nor would it let the BCG out. Eventually I got them free and this is what the handle looked like

its extremely sharp, would anyone be able to tell me what it got caught on and why?
I am new to the AR game

its extremely sharp, would anyone be able to tell me what it got caught on and why?
I am new to the AR game
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