Yes, I did, and they sold out very quickly. I read a post on CGN that Target Sports, Neit Arms and One Shot Tactical would be getting more of them this next week.
In all honesty, a NEA rail and a red dot are a much bigger improvement than a tritium front sight. If you haven't shot one set up that way, see if you can find one at your range to try out.
All the bells and whistles are cool, but they don't necessarily make a real big difference unless you're competing or taking classes with the rifle.
IMO, the top 5 "usefullest" (it's a word, 'cause I just used it) mods are:
1) NEA handguard rail and red dot sight
2) NEA ambi safety selector
3) extended mag release
4) left hand charging handle
5) Neit Arms bolt release