Want to get a SMG but not MP5

[Colonel Kurtz]

I'd suggest P90, or if that's still a little large then MP7. I own both and they're fantastic for CQB; the MP7 is easier/lighter/smaller, but the P90 will work for the woodland range too. Only complaints I've heard about P90 are people breaking hi-cap mags from over-wind, and if you've got long arms the lack of adjustable stock might be a pain in the ass/armpit. MP7 is great gas-gun but poor mag capacity, electric will munch through the tiny batteries and require surgery to use lipo but can get 130rd midcaps and 190 rd hicaps.

And as usually I'll suggest Tokyo Marui as manufacturer