I purchased this gun and was very pleased. The majority of the gun is metal, excluding only the stock magazine, pistol grip, stock, and RIS. (the vertical grip is too, but is easily removed). But what you really care about are the cons. The battery cover is difficult to handle, and what everyone has said about wobble is true. The vertical grip and stock wobble a bit. But its not that big of a deal. Overall great for the price!
Hop up system works very well
Metal construction is durable and realistic
Everything else not listed as a con
Wobble (but again not that bad)
Battery cover situation
The free shipping took a while, just as a heads up.
Rating: [5 of 5 Stars!]