I just installed one last night. It is as advertised and well worth the $100 I paid for it.
I'll hit the range with it this weekend and let you know definitively. It's a better trigger than the RR two-stage. But that opinion is only going off dry-firing.
Dave
Differences between them?
RRA can be a bit different and need more tuning in different lowers.
Isn't the Ruger a drop in unit?
Just curious.