I'm bored so I'll do a review of my JG M4A1 basic and my Echo 1 MP5J
The M4 is a really nice gun for the price. Shoots about 360 fps w/ a .20g.
The gun is solid but the stock comes loose when you get it so just pop off the cap on the end of the buffer tube and tighten it.
The MP5J is also VERY nice for the money. Shoots 380-390 w/ .20g. I have 2 problems with it though, the hop up is easy to adjust but it's a pain because you can hit it with your hand or something and mess it up, that and the battery is housed in the handgaurd.. you can't fit a 9.6 in there cause there's just no room. the standard 8.4 has a hard enough time in there. has a really nice rate of fire and it VERY accurate. with a .25g I bet you can make accurate shots at 75 ft gaurenteed