td: Nice looking rifle, you have good taste. I too have a set of those detachable iron sights from DD. Clever design and excellent fabrication, on or off in half a minute. If you succumb to the BRD, you will likely start replacing some of the furniture. In my case, I'm a sucker for the latest innovation in handguards. Check out Bravo Company's KMR line.
For triggers, I consider Geissele's various models to be among the very best of 2-stage types, and Hiperfire's model 24C to be the ultimate single stage trigger. The Hiperfires release with a short stroke rather than a crisp break. Geissele's triggers install the same as GI parts, very easy once you get the hang of it. My Hiperfire trigger is different and more difficult to install, but once its in, it works like a charm, very consistent 2# letoff, no bump fires. - CW