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?