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Bolt jamming

5K views 17 replies 7 participants last post by  G2 
#1 · (Edited)
Hello everyone I just bought a used7.62x39 kit and the bolt is jamming against the barrel. Anyone have a idea how to fix it?
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#9 ·
Just a though, but it may be worth double checking that the barrel is seated correctly, and that the set screw is self centering and aligning the barrel correctly.
Try this first. It looks like your barrel is not seated in far enough. The extension should extend into the open part of the reciever 1/16 to 1/8 in my experience. If your barrel screw is not centered in the extension dimple, your barrel may be slightly rotated.
 
#13 ·
How about a pic of just the bolt and carrier from the top? If your 223 bolt is working with the 7.62x39 barrel, we'll assume the barrel/extension is not the problem for now.
What we need to look at is the way the bolt/cam are engaging.
 
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