I got this gun in January and wanted to use it in a few wars before i made a review. This gun exceeded my expectations when i got it. Mine came with 20 (i think) UTG rubber rail cover segments. Those things are very comfortable. They also look nice with the gun. The rails are full metal and free float. There is absolutely NO wobble on those things. The crane stock is much more comfortable than a normal LE style stock. This has the most comfortable pistol-grip (besides my pistol) i have ever felt. The texture on the body is very nice and it is not shiny. The blowback works well, and an interesting thing, it will not blow back hardly at all if there are no BB's shooting out. One bad thing is that the only mags that i found that work in this gun without modification are P-Mags (which is ok by me because i like them better). Otherwise, you need to put a layer of electrical tape around the normal metal hi-caps. If you don't, they have trouble feeding. I got a Madbull Gemtech 6" Silencer ,6.01 tightbore barrel, 3X9 scope, bipod, and for night ops, a red-dot w/laser. With all of those things, this gun is a beast. Once i got the mags to feed, it performed very nicely. The only other real issue, is it eats up battery, so you would want to get two (not really a big deal, if you can afford this gun, you can afford another battery). Other than that, i had no other problems. It is somewhat heavy and there is only one sling mount right in front of the buffer tube. (not a big deal because there are QD sling mout spots on the rails).
NO wobble on the rails
Rails made in USA :)
FPS (mine is right about 400 w/.25's and 430 w/.20's
Magazines have trouble feeding unless you have P-Mags or electrical tape
might be heavy for some
all of those cons are only minor problems