Gun manufacturer accountability (or lack thereof) is a complex topic and one with ongoing lawsuits and evolving legal arguments. (In the USA see the Bush-era NRA-backed Protection of Lawful Commerce in Arms Act in 2005 and recent Smith & Wesson Brands, Inc. v. Mexico arguments).
Personally if a gun manufacturer markets a gun with the primary feature being finger print resistant (yes, that's real) and being easy to carry concealed, I think lawmakers should investigate. Likewise f someone makes a big CSAM generator button and puts it in front of millions of users, it also deserves legal attention.