Basically my attempts to get the parts laser cut and bent failed. the sig and pe57 receivers are extremly complex and precision parts. there is only .010" clearance for the bolt and the prototypes were to inconsistant to be useable. I won't sell parts that don't work.
I have sent a kit and parts to Sherman, the guy doing the vickers, who is a master machinist / gunsmith to make a bending / forming die. he is working on it and hopefully we will have the tooling to make parts thet will work properly.