The new law has drawn pushback from people who've been injured from unintentional firings of their Sig Sauer pistols.

A military police sergeant stood chatting with his supervisor inside an office at Fort Eustis in Virginia when another soldier, on his way to the refrigerator, tried to squeeze past him.

“User-victims are being shot by P320s when their hands aren’t even on the gun,” said attorney Robert Zimmerman, who has filed previous cases against Sig Sauer. The P320 is one of the country ...