The restriction applies to all generations, but you can find retailers that will send it.
They are taking a fucking big risk, as it doesn't matter what GEN it is, it's still a Federal matter, and includes allot of jail time.
Anything I can find here is either total shit, or $1000. The GEN2+ and GEN 3 you are getting for that $1000 up here, however, is actually really good gear.
Newcon is based out of Toronto (404 and Steels) and is where I have been buying my NV for a few years. They are an Eastern Block house running new Russian designs. Their DN series are GEN 2+ and 3, modular, flexible, and reasonable for what you are getting.