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borescope

  1. Gun Cleaning
    Hello all. I just got my first borescope and need a little help with what I'm looking at. I know, F.N.G. gets a borescope and doesn't know what he's looking at. Sorry. This is the barrel of an AK-47. It's chrome lined, got it 4 months ago, and have put about 350 rounds through it. The question I...
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