Kel Tec P3AT is DAO for safety reasons. I carry a P3AT with a round in the pipe. You can not "accidentally" fire it, as it requires a long, deliberate trigger pull for every shot. An Uncle Mike's pocket holster also won't allow trigger access without lifting the pistol completely out.I own a Bersa 380 acp at the moment, and am considering buying a Keltec P3AT 380 for CCW. Still not really clear on the difference between the double and single action. Only know both guns are dao. Explain please?