Hello people, how are you?
I haven't write here for a while.
I would like to ask you about the fitting sizes on the AK series.
I started building my own Ak from cero. I am at the building of the barrel. I have it drilled and heat treated. I need first to straighten it a little bit more, that's a problem that comes from the heat treating.
Besides it I am making the drill bits to go from the 4.85 mm of the current drill to the 5.56 mm (I bought a reamer of 7/32") to make the final pass (trough 5.5 to 5.56). Then the riffling.
I am just intending to have a functional weapon, I am not pretending at this stage to hard crome the barrel, or other stuff that is very complicated to my present knowledge.
I have photos but you will not be able to see the hole, just the external shape.
I have found the blueprint in cad format and they are very accurate, but there is no tolerances (bolt, trunnion, bolt carrier, trigger mechanism) That's way I am looking for them.
So far it took me 3 barrels to reach the one I am working now. and one year. I made it form a bar of AISI 4140 steel. Quench at air-oil (after 3 minutes on air). Then temper to a hardness of 35 hrc.
The next thing if I am successful with the barrel is to follow with the bolt.
If someone could helpme I will appreciate it.