I got this gun last November and have had minimal issues with it. It easily shoots 200 feet and keeps a fairly tight grouping at that range. The plastic body is incredibly sturdy and light weight, and the pistol grip and crane stock are both comfortable and look awesome. The 12" rails allow lots of customization, from grenade launchers to rail covers to vertical grips, you can put anything on this gun. The ROF is yet another awesome feature on this gun, mine shoots around 20 rounds a second with my 9.6v nunchunk battery. Now for what is bad about this gun. The hop-up is terrible, mine broke after only 2 months of use and rarely worked during those months. I replaced the plastic G&G GR16 hop-up with a King Arms metal hop up and now I have no issues with the hop up. The crane stock can lead to some issues if you do not put the battery in correctly, but is otherwise great. The gun is advertised with a standard M4 flash hider, flip up rear sight, and fold down front sight. My gun came with the front sight, but did not come with the rear sight, and instead had a $20 flash hider. The final issue I have had with this gun is an air leak caused when air is transferred from the piston to the blowback system. This gun is advertised to shoot 330 FPS with a .2 and instead shoots around 290 because of the air leak. All in all this is a good gun, but the few little things that have gone wrong with it make me hesitant to buy a second G4.
Light weight plastic body.
Comfortable pistol grip and crane stock.
12' metal rails with tons of room for customization.
6.03 tightbore barrel.
450 round hi-cap mag.
great ROF with a 9.6v.
Overall a good weapon.
Terrible hop up.
No flip up rear sight, just a flash hider.
Blowback causes an issue with the FPS on mine.
Crane stock has sliced the wire covers on my battery a couple times while putting it in.
Rating: [4 of 5 Stars!]