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young_machinist

Ak gas tube swedger and collar

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I know this has been done a lot before but I thought I’d show mine since I’m working on a pistol build like others on here and wanted a short gas tube for it. First I’ll mention the collar I went lazy and ordered one from MSC direct. (13/16” [.8125”] bore size) took it to 22.0mm (.866)

I then went to school to machine the swedge. I was given what I was told was 4140 chromoly but half way through an other instructor said it was actually 1144 stress proof. That’s the fun of unlabeled metals in the shop I guess.

Turned on a Harrison M300 which is a good medium sized lathe for the job. Quick part to make and good ak building tool for sure. I will post soon with results, I just need to anneal the end of tube so it doesn't crack. 

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