Broken Gearbox?

When I went to use my KWA M4 yesterday the trigger felt like it was stuck on safety in every firing mode. When I took apart the gearbox, I found a small piece that had broken off the gear box. It looks like the piece was a block to stop the trigger contact full pulling out of its "guide." Now the spring pulls the trigger contact to far back and locks the trigger. Do I need to get a new gearbox or is there a way to rig it up.

Notice the small grey square above the screwdriver. Metal peg about a 1/4" high used to be there.

I know you can drill and tap it and superglue in a screw in the new threads you made, it will work great and never come out

Another v2 bites the dust! I can fix it.