John Harvard, my initial thought was, "That's kind of a cool idea, but it looks pretty fragile; why not an AR-7 that stows inside its own buttstock?" But then I looked up the specs and saw it weighs 3.5 lbs instead of 1 lb...

After reading your follow-up post on why you were thinking about this rifle and how you hunt, etc. I was thinking about what you said about the S&W 317 and how you're pretty decent with it out to 10-15 yards when it hit me, if you're an archery hunter, don't they make an arrow for small game to do just that? It would only cost you the weight of an additional arrow or two, I'd think. Pardon my ignorance if that wouldn't work, because I'm not into archery.