Not necessarily. Don't go panicking over the DPMS. The main issue most have? We see more complaints of poorly functioning AR's from them than a lot of other brands. This does NOT mean that every single AR they put out is an AR shaped pile of baboon crap, just that they are more likely to be such.
If it works well for you, and shoots to your satisfaction, then I wouldn't worry about it and I'd enjoy it.
What part of 'shall not be infringed' confuses people?