Downgrading JG mechbox

[kalnaren]

Originally Posted by RaisinBran

I know what you mean, but if you read my previous post, I put my M4 with the upper receiver and used a ported cylinder and it fired perfectly, and feeding was fine, everything was good except the lower that is.

Ok, fine, do what you want.

Why did you even bother asking if you were going to ignore what we told you anyway?

[RaisinBran]

I'm not ignoring what you said, im just being stubborn anyway all I asked was what should I do to downgrade the mechbox.

[Styrak]

If you don't want our advice, don't ask.
The mentioning of then fact you might need a new upper and talk about tolerances was pertinent to this thread.