Yep, now I remember. You want the "LC9s PRO". Not only does it exclude the manual safety, it gets rid of the magazine disconnect.
I gotta say, the LCP II was considered a huge improvement over the LCP by many. I thought by now that Ruger would have done the same with the LC9.
It also seems at Ruger's website that they're not making the hammer-fired LC9 anymore, though I doubt you'd have trouble finding them on the used market if you wanted to.