New rule on pistol attachments to boost gun safety, U.S. Justice Department saysWASHINGTON, Jan 13 (Reuters) - The U.S. Justice Department announced on Friday a new rule targeting pistol attachments known as "stabilizing braces," implementing a key move in the Biden administration's efforts to beef up gun control regulations.For decades, short-barreled rifles have been subject to strict regulations, including a law known as the National Rifle Act, which requires additional taxation and background checks for private transfers, among other provisions.In the days of Al Capone, Congress said back then that short-barreled rifles and sawed-off shotguns should be subjected to greater legal requirements than most other guns," said Steven Dettelbach, the director of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).Last year, President Joe Biden and U.S. Attorney General Merrick Garland announced they were planning measures to tackle stabilizing braces as well as "ghost guns" - a type of firearm that is assembled by users and practically untraceable.The new rule gives owners, manufacturers and distributors 120 days to report their stabilizing braces to the ATF tax-free."