Some of the Gungeoneers will be surprised to find that the VPC

[petronius]

21. Jumbo jets (aircraft) are also exempt from the CPSA

but such term {consumer product} does not include—

(A) any article which is not customarily produced or distributed for sale to, or use or consumption by, or enjoyment of, a consumer,

(B) tobacco and tobacco products,

(C) motor vehicles or motor vehicle equipment (as defined by section 30102 (a)(6) and (7) of title 49),

(D) pesticides (as defined by the Federal Insecticide, Fungicide, and Rodenticide Act [7 U.S.C. 136 et seq.]),

(E) any article which, if sold by the manufacturer, producer, or importer, would be subject to the tax imposed by section 4181 of the Internal Revenue Code of 1986 [26 U.S.C. 4181] (determined without regard to any exemptions from such tax provided by section 4182 or 4221, or any other provision of such Code), or any component of any such article,

(F) aircraft, aircraft engines, propellers, or appliances (as defined in section 40102 (a) of title 49),

(G) boats which could be subjected to safety regulation under chapter 43 of title 46; vessels, and appurtenances to vessels (other than such boats), which could be subjected to safety regulation under title 52 of the Revised Statutes or other marine safety statutes administered by the department in which the Coast Guard is operating; and equipment (including associated equipment, as defined in section 2101 (1) of title 46) to the extent that a risk of injury associated with the use of such equipment on boats or vessels could be eliminated or reduced by actions taken under any statute referred to in this subparagraph,

(H) drugs, devices, or cosmetics (as such terms are defined in sections 201(g), (h), and (i) of the Federal Food, Drug, and Cosmetic Act [21 U.S.C. 321 (g), (h), and (i)]), or

(I) food. The term “food”, as used in this subparagraph means all “food”, as defined in section 201(f) of the Federal Food, Drug, and Cosmetic Act [21 U.S.C. 321 (f)], including poultry and poultry products (as defined in sections 4(e) and (f) of the Poultry Products Inspection Act [21 U.S.C. 453 (e) and (f)]), meat, meat food products (as defined in section 1(j) of the Federal Meat Inspection Act [21 U.S.C. 601 (j)]), and eggs and egg products (as defined in section 4 of the Egg Products Inspection Act [21 U.S.C. 1033]).

http://www.law.cornell.edu/uscode/text/15/2052

It's entry E up there that covers firearms.

It seems to me that the claim is disingenuous at best: firearms, and a bunch of other things, are excluded from the CPSA. That does not mean they are unregulated or not subject to safety standard, nor do the manufacturers have a blanket immunity from lawsuits...