A lot of the issues that companies run into in trying to replicate some of these parts is one of economics. Most of these parts were originally made using purpose built equipment that is very costly. A cnc machine may take an hour to replicate what a proprietary machine could do in a single swipe... but then, that is the only thing that machine can do. When dealing with a relatively small market it doesn't pay to invest in a single use machine.That's encouraging, Ted. But I'm curious as to what the challenges may be after seeing (I believe it was through a link here) pictures of the original equipment on which TRW's were manufactured on. Was there some unique process or forging that has now been lost? Or, is modern metallurgy and CNC able to match or beat what has gone before?
I would wonder if the problem really lies with the barrel protruding to far and causing the bolt problem, do the receivers have this problem with no barrel installed?