heh most of my model not openning in classic modeler,(need to fix new attachment)to much vertex and polygon,modler just closing also need download pirate version of the game,steam dont like SDK.

So I assume using the SDK for Sam Classics wouldn't help with Revolution?

Revolution havent SDK ,only option is replace slider to hand but,hand will wrong textured and move on fire,that looks awful and worst thing is....This part will be visible on 3rd person mode and on item too.I know with hand looks better but without SDK it is impossible.

These sorts of things just look awkward without a hand model. It's a shame honestly because I see so many great weapon models that I would just never use because of that reason.
People might tell me the TommyGun shouldn't have looked like that in the original, but Sam in third person on Xbox I believe had him holding it with one hand, so I let it go really. Any other case is just... yeah, idk about this.