Strong recoil (my opinion)
Stock bolt wears up
This is a real great gun for its class. The reason why it is so good is mainly the price, I got mine for $100. However I did have some problems. First off is the bolt, it really wore out the inside of my gun and since there is no beavertail it can hurt you. I was actually whacked a couple of times in the chest and confused it for getting hit with a paintball. This gun also has mad recoil but it's nothing you can't get used to. If you do not buy a gas thru grip and you shoot like a maniac ( I personally do ) the gun will actually ice over. I remember one time in a game it actually grew a layer of ice on the gun, and it was about 90 degrees out that day. This gun is actually more good than bad though, it's small, light weight, fast, and affordable.
This gun is the best for a beginner and really good for a second gun. Buy it.......now