G&G MP5 A4 (TGM A4 by toptech) Pneumatic Blowback disassembly

[icycold123]

Hi everyone. This is my first time disassembling a a Top Tech Pneumatic blow back mechbox and I am having problems getting the blowback unit off.

I have looked at the many guides on how to remove it, but I can't get the moving piece of metal to come off. I am not sure if the little bit of the piston is supposed to be pried off or screwed off and I would like some feedback on what to do before destroying anything important.

Thanks alot.

[Styrak]

So you're trying to remove the thin metal fake bolt? You have to line it up with the notches and pry upwards.

[icycold123]

Originally Posted by Styrak

So you're trying to remove the thin metal fake bolt? You have to line it up with the notches and pry upwards.

The bolt is held in place to the piston. That's where I am having trouble with. I am not to sure how to remove the connection between the moving fake bolt and the piston.

[Styrak]

Originally Posted by icycold123

The bolt is held in place to the piston. That's where I am having trouble with. I am not to sure how to remove the connection between the moving fake bolt and the piston.

There are videos on YouTube of the G&G blowback mechbox disassembly.

[Bazz]

there is a very small c-clip there you have to remove at the back of the blowback piston which holds the fake bolt in place.