Originally Posted by SSGN_Doc
People already shoulder bare buffer tubes. No real difference, if the part is considered an arm brace and not a stock.
A properly set up sling is more effective than a buffer tube, and totally legal. The rules are funny. You can't attach a foregrip, but you can attach a flashlight mount and grab it all you want.
I am still skeptical about the braced "pistol". Forget the draw. One needs to carry it either braced or at least over the shoulder. I don't know if it has made any inroads in LE.