I have had mine for a little over a year now. They are great. I shot so many rounds threw mine I couldnt put a number on it, not a single problem. And it chews up and kind of cheap ammo on the market. Cant say enough anout this firearm I like it so much I might buy another one in 223. for yotes.
Theres also lots of aftermarket parts for them, half of them would make the same firearm illegal but.... Lol !!