Good Evening- I'm so glad I found this website. There are many great posts and some good reads.. So now to my questions - I recently picked up my Mega Arms MA TEN receiver set. It had a DPMS lower parts kit, buffer assembly, and 6 position collapsible stock already installed. Basically I think I need a barrel with gas block, gas tube, and BCG. I am more than aware of the VERY limited availability if not impossibility of obtaining parts these days. As much as I would like to have my rifle out on the range already, I want to take my time and build a high quality rifle that will be very accurate. I know with the MA TEN set up I have the option of going either AR or LR route. Which is preferred? Is it just a personal preference? To me there seems to be a whole lot more LR part manufactures, so parts might be more available if I go that route. As I've been browsing the internet I have started putting items in my "shopping carts" on different websites. I have been leaning towards using a Fulton Armory Bolt Carrier, a DPMS gas key, DPMS bolt component pack, and eventually a JP enhanced bolt. Will this make for a quality BCG? Are there any recommended part upgrades that I should consider? As for a barrel I've had my eye on either the 22" Fulton Armory Heavy Weight 1:12 or the Rainer Arms 24" UltraMatch 1:10. For the gas block I would probably be using a JP adjustable low profile, a DPMS rifle length gas tube, and a Lancer carbon fiber extend handguard ('cause I think it looks cool). Once again any upgrades? Eventually I plan on swapping out the DPMS trigger and changing to a rifle length buffer system (maybe the JP captured spring) and a PRS stock. Does this sound like a quality build? Is there anything that I am missing? I am completely open to any suggestions. Thank you in advance for taking the time to share...