Bob Wright said:
" Uberti single actions DO have a safety. There is a trigger acuated hammer block built into the hammer. When the hammer is drawn to the safety notch, a lever engages the hammer block located just below the firing pin and bears against the frame. This is an effective and unobtrusive safety, and really I prefer it over the transfer bar safety of the Ruger, as it gives the hammer a more pleasing profile.The one I just bought last week is my third Uberti Single Action, and by-and-large, I've had good experience with these guns."
While I would agree that the recent years' Ubertis especially are fine guns--I love my ca 2008 Cimarron Model P--the "safety" in no way equates to Ruger's transfer bar in that I'd never suggest loading six in the Uberti (not talking the Beretta Stampede line here). In that respect, these "safeties" have entirely different functions.
If you want SAA look and feel and are on a sub-$850 or so budget, Ubertis are hard to beat. Not a problem one with mine.