My friend and I just tried out this gun today. Just let me say this thing is a BEAST. The ROF is amazing with the included 8.4. The mag fits nicely and has almost no wobble. Feels nice, about 6.5 lbs when put on a scale. Lots of metal parts: barrel, front sight, mag, carry handle, rails, rear sights, trigger, trigger guard, dust cover, charging handle, the butt plate, the selector switch, and both sling mounts. All the internals are metal, or so the box says. Quite accurate with .2g bbs, shoots around 380-400 FPS(chrono varied) I have found 2 bad things on this gun, however. The flash hider IS glued on, which isnt really a problem since its illegal to take it off without replacing it anyway. And, the battery compartment is VERY tight and it takes some skill to put the battery in right. All in all, very good gun for the money, definitely worth it.
-Weight (could be a con for some)
-Decent amount of metal for a plastic body gun
-Full stock is nice
-Hand-guard is comfortable to hold and comes off easily
-VERY TIGHT BATTERY FIT
-Flash hider (not a con for me, but could be for some)
Other then that nothing, if you don't want to spend over $200 on a great M4, get this gun and you won't be disappointed!
Rating: [5 of 5 Stars!]