The Mod 1 is a little lighter and I'd argue more configurable without buying more parts. But of course, it's not "as" iconic. I'm not sure what Monty is doing with his barrels now (I think the MK12 and RECCE barrels may still be Douglas, but that may be in error), but my understanding was that at the time I bought mine, his MK12 was a Douglas as well. Perhaps that was incorrect. Either way, it's to spec, it's super-accurate, and the gas is just about nil (I had to go there!).