Ah. I was thinking that was a "brace".
Sure seems like the developments in stabilizing devices is making the distinction near moot.
Agreed. At the time I SBR’d, SB Tactical hadn’t released the collapsible brace. The only option was to put an adapter pistol buffer and brace on. Which I didn’t like at all. Also, at the time it was “illegal” to shoulder a braced pistol. Now that SB Tactical and others have came a long way. Almost to the point where I wouldn’t mess with all the hassle. Especially with the ATF revision of the shouldering element.