Yeah, me too! I tried to look it up, but the only thing I found was this AR-9 type rifle that took Glock magazines, only it was lever action (I'm assuming so that Brits could own it.)
But the one in my dream was a more traditional-looking, tube fed lever action. I was hoping someone might know if such a thing has ever existed, and if not, I wonder exactly why?
It has been entertaining, though, reading all the weird dream stuff. I've also experienced similar things as a lot of people, like where I do something really horrible in a dream and wake up feeling awful about myself, or I'll wake up and still think what was happening in my dream is real for a few minutes (though I've never used nicotine patches or anything else that I think would have triggered it, it just seemed to happen on its own for me...)
Arms like that are what compromise gets you.