So, I'm currently doing some maintenance on my G&P M4.
However, as I try and put my trigger in, it just seems to fly out. When I watch the Mechbox videos on how to disassemble and re-assemble the gearbox, he seemingly puts it in with ease and it doesn't fly out.
I'm using the original trigger, the original trigger contact box (If that's what it's called), and different wires. It was also originally wired to the front, and now it's wired to the back. I've adjusted the wires so it shouldn't be an issue.
Any ideas as to what to do or fix?