在美国被视为收紧枪械管制最大阻力——全国步枪协会 (NRA) ——罕有地提出，对可将半自动枪械变成全自动的“撞火枪托”（Bump Stocks）加强监管。

The Supreme Court will hear oral arguments Wednesday over whether bump stocks for firearms should remain illegal—potentially ending a years-long federal ban on the gun accessories, which allow ...

President Donald Trump’s first administration imposed a national bump stock ban nine months later. The move, while close to ...

WASHINGTON (CN) — The Supreme Court agreed on Friday to decide if bump stocks are machine guns, setting up a major Second Amendment battle that could ban the devices nationwide. Machine guns are ...

Bump stocks work by helping the user pull the trigger ... Even the Obama administration thus had to approve these devices for sale. How did the ATF get around that? The agency added this to ...