I'd like it if gun companies started going after each other and calling each other out in ads like car companies have been doing for years. The competition would probably get us newer/better/different designs.

BMW and Audi always seem to come out with the funniest jabs at each other:
Freelance.tv - FOR SALE: Advertisement War: BMW started it, Audi answered...Bentley chairman had final say.

Billboards War: BMW vs. Audi