Last edited by 1biggun; 05-20-2016 at 10:31 PM.
Well, I just remembered that I got a luger barrel for free because it has a ring in it, someone with a barrel wrench got a little excited... I'll make one of them 24Hr AKs, it'll be easy having a mill at my disposal. I figure if it ain't accurate it won't matter much, as the barrel was free and the materials wouldn't be all that much...
EDIT: The Orion's hammer guy is the one that made an AR lower out of a cutting board!
Last edited by 1biggun; 05-20-2016 at 10:32 PM.
1biggun, I don't think you should spend the money on a 74 bolt. Look here and see how this bushing fits a 47 bolt to size it down for x25 & 9mm, you can see the ejector will hit just the edge of the case.
"Government is not the solution to our problem, government is the problem" Ronald Reagan
Use plain old chicken-wire grade 1018 or 1020 mild steel to prototype with. It's easy to machine and cheap. Use those to debug the design. Any deformation will tell you exactly where you need a harder metal, carburizing, or whatever.
I don't see that the trunnion would have to be anything other than mild steel; all it's doing is holding the barrel to the receiver. Unless you get radical skeletonizing it, it'll still be way stronger than the screws or rivets holding it to the receiver.
If the bolt slides back and forth like an AK bolt carrier, that's a lot of area to slide. That might not be an issue. You might need to heat treat the area where the hammer hits, or you might could just built it up a bit with some MIG weld and grind it back down; ordinary ER70 wire is a lot harder than mild steel.
(unsolicited advice) Build something that will fire reliably, then worry about how long it lasts before parts get peened, mushroomed, or egged. If you get too much invested in a particular design, it gets harder to backtrack and start over if you find a better way.
I have a tendency of over-think or over-design things. If you go down that route far enough, you will eventually complicate things enough that you just give up. Which is why I developed a new mantra: "Perfect is the enemy of good enough." The AK is a shining example of that philosophy.
Last edited by 1biggun; 05-20-2016 at 10:33 PM.
Last edited by ; 08-06-2009 at 06:38 PM.
I came up with a modification to the bolt on the orion's hammer build.