I needed a fire selector plate for my PTS Masada which is no longer available.
Airsoft Engenuity ( find them on Facebook) were able to quickly, and at a reasonable price,make one.
I highly recommend them.
This is the service they can provide.
"As you know, I have 3D design, print, scanning and CNC engraving services.. so pretty comprehensive and can design and make most things out of all plastics.. cant do anyting metal other than light CNC engraving."