Help with 1.6 mm Armory USA Receiver
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Thread: Help with 1.6 mm Armory USA Receiver

  1. #1
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    Help with 1.6 mm Armory USA Receiver

    Picked up a 1.6 mm armory USA receiver over 5 years ago and have decided to use it with a all matching Polish AKM kit. Itís been a complex build so far and is also a rust bluing project as well. Fitting has been quite a to do. Though I still have a little grittiness towards the end of the bolt carrier travel it is feeling pretty good. I was wondering about heat treat? Iíve read that 1.6 mm Armory USA receivers are fully treated to begin with but is this through and through or is it a full surface heat treat? After riveting together the receiver, trimming fitting the rails, ejector and mag well Iím getting close to doing rust bluing cycles and need to know wether I need to spot heat treat my axis pin holes and ejector? Any knowledge and advice about doing a build with a 1.6 mm Armory USA receiver would be greatly appreciated!
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    welcome from Tennessee!

  3. #3
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    Thanks from Ohio!

    So I think, from talking to some others, that I shouldn’t have to heat treat axis pin holes. I also figured out that I may have taken a little too much off my ejector; maybe like 1 mm. Really hard to tell if cycling and ejecting rounds will be better after pressing in the barrel and having the gas tube as a guide. Going tomorrow to a welder to get a couple hard drops on it. Hopefully I should then be able too reshape the ejector. I’m told a lot of the time if a part is hardened, not only will the weld on it generally be harder than the part, but it also has a tendency to float any hardening to the surface.

    ill post what I find out and results after I go tomorrow...

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    Welcome aboard.

  6. #5
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    Got the weld done and reshaped. Of course it would look better if I didnít have a reason to do it in the first place but Iím happy with it and better than that it ejects correctly.

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    DC160010-F3D2-489B-87A2-ABBBB3676301.jpeg

 

 

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