So I received mine today...
Honestly, I'm disappointed.
Very little distinguishes this one from the original release. When I heard that they were doing this new one in metal I thought, "Cool - maybe they'll give it some sort of gun blue finish and then go at it with steel wool to reveal the bare metal underneath, and give it a realistic-looking weathering job..."
Nope - it's completely painted, just like the first one, with poorly-done, dry-brushed silver paint for weathering :unsure
Also like the first one, the trigger and hammer do move, but there is no mechanism that connects the two, or that rotates the cylinder - the cylinder just spins freely.
The only thing that's different is the weight... plus, the break-open action is much sturdier, I'm sure.
I got the Sideshow exclusive version, with the light-up tracker rounds, and they're OK, I guess.
The only thing that really impressed me is the base - it's actually pretty nice. And you know what - that's kinda' sad. For as much money as they were asking for these things, they dropped the ball, IMO.