Long time no talk. You've forgotten about me now that your a better modeller (Yes, I do remember the time when I thought I could model better than you... maybe I should try? Ha! You'd beat me...)
Anyways, if you modelled it off a picture you're more accurate then. I thought the Diameter was too small, but guess not. Nice mdoel nonetheless

And concerning polygons, well, it is a bit low polygonal, but I don't think it should be compared to the Pro's (2000-3000 polygons for a mere revolver is a bit high no?) Honestly, I think the lower polygonal stuff shows who's the truely better modeller instead of who can make a simple mesh then hit the 'smooth' button 3 or 4 times to make it look better...