The Walther P99 is definitely a different kind of striker-fired pistol. The P99AS has a DA/SA trigger, with a long 9-lb. DA pull (with restrike capability) and a short 4.5-lb. SA pull, and a decocker to top it off. Walther formerly made a P99DAO that only had the long 9-lb. trigger mode, as well as a P99QA that used a partially-tensioned striker and a trigger pull of intermediate length and weight.Personally, I think classifying SFA pistols as SAO or DAO is rather misleading. The Walther P99 might be an exception, but I have never shot any striker-fired pistol where the trigger pull length and weight remotely resembled the trigger action of a double action only pistol, a DAO revolver, or the double action first trigger pull of an uncocked traditional double action pistol.
I do believe that SIG would like to reserve the option of calling a P320 DAO to help their chances at certain types of "bulk sales".I have seen Sig P320 carrys advertised as DAO. Thinking this might be unique to certain models or variations, I called Sig to find out. It took the rep 15 minutes to try to figure out what it was and never came up with a suitable answer. The info on this forum seems to be the most accurate I have come across. Thanks guys.
Technically (IMO) it is closer to a DAO than an SAO.I thought a striker-fire gun was an SAO gun with an internal hammer. That is why I bought a P320 because it was advertised that way and it works that way, which is what I wanted. The P320 as a DAO? I don't think so.
No it is striker fired.Is the p320 a true double action only where the trigger is the only thing that cocks the striker?