I've seen these and variations of them. http://slickguns.com/product/henry-...mi-auto-rifle-22lr-165-8rds-203-free-shipping A nice back pack gun. Unless bear defense is in mind. Anyone know of one in a larger caliber? In Alaska, I carried a Ruger Black Hawk .44 mag as a side arm for camping. I would camp along the Copper River, never had to use it but saw plenty of bear. Also camped miles upstream along the Swanson River and saw soooo much wildlife. Early 80's... those were the days!