I have a M16A4gery from PSA with the FN upper and stock trigger. I’m thinking about upgrading the trigger and wondered what my options were for ~$100. I’ve looked at the Larue MBT, RRA National Match Trigger and the PSA branded 2 stage NiB trigger. I have the PSA trigger in a 308 PA10 and like it pretty well, so that one I have used. Any other options or opinions on these three?