I have 2 guns with the RRA NM trigger. I have always liked them,and they have performed flawlessly.
Some diehard mil-spec AR guys might think differently of them,but to me they are a great trigger.
Mine have a solid 1st stage stop,and a very light 2nd stage.Both are smooth pulling,and have very little creep or over travel.
Both of mine are the non-chromed triggers,I don't know about the plated version.