Hello there!
I Want to upgrade my G&G m4 PBB but I don't understand how you are suposed to remove the blowback assembly.
Theres no screws on the top part of the mech box, its seems to be held in place with the blowback cylinder and/or a little metal strip. I already almost stab myself in the leg trying to slide it back with a screw driver but it doesnt move at all!
Anyone opened a PBB mechbox before?
Thx for looking