Saw your break down. I'm going to do one up for my lowers and uppers as well, I lost track. That's a super gucci build you have. It's nice and light with the optic included. Did you choose that BCG over the brownells light weight just for the weight difference (7.9 vs 8.2oz), or just #### it, why not go all out?
All my lowers will be the exact same other than triggers. went with Geissele SSA-E and trigger tech AR diamond.
Honestly I didn’t build this one haha, this is one I bought from a CGN’er while I wait for my email to show up! I changed a few things here and there but nothing major. My hand guard I bough for another build wouldn’t over the gas block so I stayed with the original, otherwise it would’ve shaved off another few ounces. For the BCG I assume the original owner knew about the lightweight ones not working well with ejection port covers as he had another one as well. But I can’t say for sure. Once I get my two other MS’s built I’ll post them as well along with compatibility issues if I have any.