Thanks guys, but I had a change of plans. I liked the YHM sight, but I decided to go with a longer 9 inch handguard (Samson). I am just using a LaRue gas block underneath and mounting a Troy HK-style flip-up on top of the handguard. It looks sooooo sweet. Oh yeah, don't even try to disassemble the YHM unless you have a press (I don't know how you did it chuck1). Thanks for the duracoat offer anyways JosephR. I hope to post some pics in the other threads when my build is complete.
Mark, I liked the YHM sight sight, but I also did not need the bayonet lug or the sling adapter (I am using a single-point). The only downside to me besides the finish is the clamp method that it uses to mount (atleast the one I had). The screws just go up through the bottom, not a very smooth look. After it is all said and done, I like the way that I opted to go best (covering the gas block with the handguard), but that is my personal preference. It is probably a good buy for the money.