I need some general info on AR pistols. To be honest, I was never interested in AR pistols before, but the itch to build again...
What about the ATF? I can’t take the stock off my rifle and call it a pistol, right? What about building a pistol lower and using the same upper I use on my rifle lower? Is that a legal pistol? Does the 18” barrel make it not a pistol? Does using an 80% lower change anything?
Is a 10.5” barrel any good for 450B? What about barrel length for .223/5.56/Wilde?
A pistol lower buffer tube is “normally” rounded and sort of “padded”? (Yeah, I know. Newbie questions.) If you’re using an arm brace, is that a normal buffer tube, then?
...and let me be so bold as to ask this. Does an ‘arm brace’ allow you to fire your ‘pistol’ from your shoulder?
(It’s overwhelming, my ignorance of all things black rifle related, I know. Even one answer at a time is fine...)