I've just had quite an interesting (if not heated) debate with a gamer over a particular Russian-built weapon and if its classed as a Personal Defence Weapon or not.
The particular weapon is the SR-2/SR-2M "Veresk" submachine gun. According to him, the only PDW that the Russian armaments industry every bothered to produce was the PP-2000 (which to be fair on many websites, its listed as being a PDW/SMG anyway). And because the AKS-74U is a compact assault rifle, it doesn't really count as such.
So here's a couple of things he caused me to mull over, for curiousity-sake really but since doctrine is always different especially from East to West, its an interesting point to consider.
1: Thinking about the two best-known PDW's (the H&K MP7 and FN P90), the SR-2/M fires non-standard 9x21mm ammunition which is designed to deal with bullet proof glass/body armour at decent ranges (up to 200m according to Wiki). The size and weight of the weapon seem to be very impressive considering the firepower potential - which is one of the main design considerations of a PDW anyway, right? So is it classed as a PDW by definition then?
2: PDW's themselves are pretty much a niche weapon it would appear. Although I think the AKS-74U probably makes the best of criteria like simplicity and available parts not to mention magazines and standard ammunition, where does a compact or chopped-down assault rifle stop and a dedicated PDW actually take over? Is there really anything more to it than just giving it a different stock and called it a "PDW", like the MP5K-PDW...
Small arms aren't usually something I read much into (well apart from the Sten and the Sterling perhaps, but that's only because they were part of the display at the CHARM museum on the Isle of Wight). Amazing how different such things can seem when you see them in person.