I picked up my King Arms Daniel Defense from a friend of mine, who was a little overwhelmed by the work he had cut out for him. King Arms has done a really fantastic job with the body (it's very light weight), and paired with the Daniel Defense rail system, you get a really solid feeling and looking gun. It has been a pleasure to shoot, and since this is approved by the ATF, you can take it out to fields and play with it legally, and there is no danger of having it taken away. The trademarks are stamped into the gun, instead of painted on, and it is easily modifiable to make it "yours". I do have a few issues. This gun is not completely usable out of the box; it does require some upgrades. The loading nozzle on mine broke after about 30 rounds. This is easily replaceable, and will cost under $50 to fix; just make sure not to get another stock King Arms nozzle. For this gun to really be field playable, one will have to buy a few more magazines, which does add up pretty quickly. At $50 a pop, a milsim set up will be brutal on the wallet. Other than that, Fantastic platform, I highly recommend it if you are willing to put down the extra bucks to make it work for you.
Great look and Feel
Not too heavy
Loading Nozzle needs to be replaced ASAP
Magazines are expensive