Duty build - Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver w/ Flash Hider

I bought this upper for HRCC. My training and everything so far with this rifle have been flawless. Easy use for entry drills and CQB. Very accurate, even under ridiculously heavy use. Runs great with my Surefire SOCOM RC scilencer on it, spits a little gas at you, but thats normal. Im running a spikes tac T2 buffer on it and that seams to tame down the over gassing DD likes to do on this model. Found a few reviews on people saying that some finnish was chipped on theirs my guess is that they want a "safe queen" and wont run this rifle to its potential anyway. But i deffinetly recamend it.