The thread on Wolf Importing Steel Cased 300 Blackout got me to looking around for a thread like this and I really didn't see one, so here we are. If there's already one and I missed with by not using the right search string...well, here we are anyway.
After spending a month or so building an AR9 pistol in my head I started thinking about a rifle caliber pistol build. There is no best/perfect/one to rule them all because everyone has different wants and needs, I get that. I'd like this thread to be a place you can show and describe your pistol/SBR and explain why you put it together the way you did. Plus I'm going to mine it for ideas should I ever decide to quit overthinking what I want and just build one.
Aaaaaand go!