Need Help w/ Review

[Demlockian]

What the topic says...I am working on an in-depth review but need help with the internals section.  I do not know the internals well enough to give an accurate opinion.
The replica in question is the JG Full Metal M4


If anyone knows about the internal quality / specifications please post them.  Do NOT post if you are guessing, only if you truly know.
Credit will be given to those who assist me.

Right now the review is 1,618 words with 27 pictures.  Estimated finished product will be around 2,000 words and 35 pictures.

[icorus16666]

it really depends on which generation of jg you bought if you can post a pick of the gearbox i would be able to tell you the good the bad the ugly. If your jg has 5 bolts on the spine of the box it is one of the newer models. In my opinion the quality has suffered between this generation and the last generation.