My Yugo Underfold AK Build

[korntera]

I finally gave my ak parts kit a home in a receiver here are some pics of the build we did. Not sure how other people do theirs but this is what my friend and I did...
First we started by grinding the old receiver down the thickness of the new receiver on all 3 sides


Next we turned the receiver flat into an actual receiver with my friends homemade jig and 12 ton press


Finished Receiver


We heat treated the receiver at some of the stress points


Receiver spot welded to old receiver and rails welded in


Rear of receiver cut at 45 degree angle and old receiver and trunion cut at 45 degree angle and welded together.


Function check, everything goes click so we should hear a bang!


All grinded smooth and polished down with the dust cover on, just waiting on the trigger and pistol grip group buy now.


My friends finished AK and what mine will look like when its done. What is that receiver attached to in the background? Could that be a PSL build?

Read More

 

[coctailer]

WOW!!!!

that was he hard way..........Looks really clean without the rivets though.

Why did you choose to weld instead of rivet?

 

[coctailer]

What flat was that?

the bends look great. Did you scribe them before using the jig?

Top rails already folded? Tapco?

 

[korntera]

WOW!!!!

that was he hard way..........Looks really clean without the rivets though.

Why did you choose to weld instead of rivet?

Because I didn't have a way to rivet and didn't really know how to so welding seemed easier(plus my friend Sava6e on here) is the one that did it, i kinda just watched the welding part.

 

[korntera]

What flat was that?

the bends look great. Did you scribe them before using the jig?

Top rails already folded? Tapco?

Yes top rails already folded. No we did not scribe it, we kinda did the hope this works eyeball it measurement and it worked!

 

[coctailer]

Excellent work.

 

[finch6013]

nice work

 

[needs2hunt]

right on I never thought about welding the trunnions to the receivers...hum

 

[korntera]

If anybody has any detailed questions about how it was done you can message sava6e he did all the welding for me and built his jig from scratch.

 

[sava6e]

well, i came up with the welding idea mainly because i didnt want to have to track down a front trunnion and press out the barrel and press it into a new trunnion, thus grinding down the origional forged receiver to specs and welding i figured woudl be way easier. count what used to be part of the receiver a foreign trunnion now and voila, however i have read on militaryfirearms.com that it is not considered a foreign part, even a letter from the fed to say so, but safe than sorry and i like to replace some of the parts anyways with new ones so it wasnt a big deal with 922 compliances.

 

[Anton]

you selling it?

 

[sava6e]

As far as I know you can't really sell a homebuilt receiver with ease. I am curious how much you would be willing to pay!