Wow, so apparently they have taken to calling out specific guns...
http://www.thefirearmblog.com/blog/2013/01/11/kel-tec-raises-ksg-price-by-300-to-recoup-costs-before-ban/
Kel-Tec has sent a letter to dealers informing them that because they have learnt that the Kel-Tec KSG will be specifically named as a banned gun in Feinsteins proposed bill they have to raise prices to try and recoup R&D costs in the event that the gun is banned.
http://www.thefirearmblog.com/blog/2013/01/11/kel-tec-raises-ksg-price-by-300-to-recoup-costs-before-ban/