New revolver/revolver model?

So i was looking through the rust web sight and saw what looked to be a new revolver. I never really keep up with the sight and i haven’t really heard about it. all i hear about is the damn bone knife. http://files.facepunch.com/garry/home/2014/May/09/20-20/B32a.jpg

Looks like a single shot zip gun. Would be a nice starter point before the current revolver seeing as how it’s quite the technological spike going from pipe pebble shotgun to functioning ranged repeater.

Exactly “scrap revolver” appears to be a misnomer as there appears to be no revolving chamber.