I own the G&G T4-18 gen 3 and a good friend uses the G&P M4 all be it with the monolithic rail not keymod. The key differences having fired both guns to me were:
- The hop in the G&P works better, is easier to dial in and the end result is it fired quite a bit further.
- The G&P externals look significantly better. The G&G is not great metal quality and the lack of smoothness shows on the finish. They also missed with the paint in a few places on mine whereas the G&P as far as I could tell was flawless. The marking on magazine well for the G&P was also better. Overall externals definitely go to the G&P.
- The G&P trigger was a shorter softer pull and trigger response was quite a bit quicker.
- The G&P felt like it was a lot heavier.
The usual saying is G&P is better externally (it really is) but the G&G is better internally. But based on the firing results side by side I think the G&P has a better end result. Having taken a look at the G&G internals I wasn't all that impressed with the quality of the parts, it may very well be that the G&P are worse but for a potential project gun to build on you are better off with good externals as the internals can be fixed if it doesn't shoot well.
So overall personally having seen both guns skirmished a lot over the last 6 months if I knew then what I know now I would buy the G&P without reservation, its simply the better gun objectively and subjectively. Its a lot more expensive as well, they aren't really in the same price brackets.
thanks
