I've been considering either building or buying a complete AR 9MM PISTOL. I like what little I've seen so far of the Foxtrot Mike. I want to keep the barrel length around 8.5 inches and no more than 10 inches. I also want it to be a side charger that uses Glock magazines. I'd like to have iron sights as well as a red dot optic. I like the FM side charging handle that is mounted like an H&K. Other than that I just need any recommendations that anyone can give me about different manufacturer's, features, quality and workmanship. What do you all have and what has worked best. I'm really just starting to assemble my thoughts about this so I need all the help I can get.