While firearms manufacturers and dealers are shielded in part under the 2005 Protection of Lawful Commerce in Arms Act, which limits liability when their products are used in crimes, New York state passed a law last year designed to allow civil suits to be brought against the gun manufacturers.
Unlike politicians, trial lawyers find ways to act even when conditions are difficult.
Here is the link.
Victim of New York Subway Shooting Sues Gunmaker Glock and Parent Company