I understand DAO means Double-Action Only, and mostly understand the workings of it. But lately I've caught the Sig bug and I've been browsing their handguns. Now I see all these DAK's popping up everywhere. WTF. And of course I've looked around on their website, and even in some handgun magazines, for an explanation of what it stands for and how it works... but I'm not finding much. Can someone more educated in this matter than myself explain to me what DAK stands for and how it works? Thanks.