How pistol stabilizing braces differ from short-barreled rifles

Originally developed by Alex Bosco of SB Tactical, the brace was meant to offer more stability for wounded and disabled veterans shooting AR pistols.

The Gun Industry in America - Center for American Progress

Federal Register :: Factoring Criteria for Firearms With Attached “Stabilizing Braces”

How pistol stabilizing braces differ from short-barreled rifles

Regarding firearms, what's the difference between a brace and a stock (e.g. pistol w/ brace vs. short-barrel rifle)? - Quora

Enforcement of ATF rule redefining short-barreled rifles starts June 1

Why the ATF Canceled Review of Pistol Stabilizing Braces

Republican AGs sue ATF over new rule regulating pistol-stabilizing braces

Can you shoulder an AR pistol? The ATF say 'Yes'

ATF's new rule says guns with some braces are short-barreled rifles

Justice Department Announces New Rule to Address Stabilizing Braces, Accessories Used to Convert Pistols into Short-Barreled Rifles - The Shooter's Log

Public safety, gun rights, executive overreach all factors in three suits - including W.Va.'s - challenging new ATF pistol brace rule - Dominion Post

W.Va. state law prevents enforcement of 'pistol brace ban

Kansas pushes back on pistol brace ban