The short short barrels are brutal from a shooting experience IMHO. 10.5" is about as short that seems to still be ok to shoot - strictly an opinion. And then who knows where BATF will go on brace interpretation. I think the MK18 is the way to go w/ tax stamp.
I got to see and shoot a Geissele URGI 14.5 with the pinned flash hider and I have to say, fit, finish and feel was right up there. Just a cool factor even on a plane jane lower. That's probably on the list to buy once we are through this mess.
I personally believe all the quality worth paying a premium for is in the barrel, BCG, and upper. The lower is comprised of commodity items with exception of the trigger.
So easy a caveman can do it. Even tried anodizing myself, got the chemistry wrong and ended up with a bronze lower, ha. Nothing a few coats of spray and bake couldn't fix.I personally believe all the quality worth paying a premium for is in the barrel, BCG, and upper. The lower is comprised of commodity items with exception of the trigger.
So - if you are halfway handy, then a good option might very well be to build your ideal lower - and add a high quality trigger (like this one) then buy the highest quality complete upper that floats your boat (like this one). Add optics/sights to taste.
BCM (Bravo Company Machine), Colt 6920 or 6720, LMT if you can find'em, Geissele. Aero Precision is making some good stuff now a days. Tough time to be looking though.