I purchased one of these about a year ago right when they first came out, and so far, have been impressed. The buidl si solid, trades are beautiful and it's very comfortable to hold. Out of the box, I did have a few minor issues. The hop-up on mine was a bit finicky, and did not want to hold its setting for extended periods of play. This was not a major issue for me as I always overhaul the hop-up unit and barrel on any new gun right off the bat, but for the average player, a finicky hop unit can cause many headaches. The magazines are nicely molded and carry a nice stiff spring, and the feed was great.
Holding the gun, it's solid and has a bit of weight, which I personally like. One thing I did notice, is that the fire selector on mine was a bit loose and not as "firm" in clicking into place. It did have a bit of play which I do not like, but it's manageable. The magazine wells are a bit wider, so there is a bit of wobble, but that does leave it open for more then just one brand of magazine, as they are all made to slightly different size standards.
My only major gripe, which cannot be controlled without buying an expensive replacement, is the threads. As with all G&P guns, it has the not so common clockwise threads. Aftermarket flash hiders with a CW thread are far harder to find, and a good quality CCW-threaded barrel will cost a bit and you'll need the proper tools to install it.
Despite the few bad things I have found, I love this gun. I've been running mine with a stock gearbox for almost a year, and gets just as much use as any of my other rifles. For anyone looking for a "Magpul M-4 base", you will not be disappointed.
Non-standard clockwise theraded barrel
Rating: [4 of 5 Stars!]