I’ve occasionally mentioned that I own a Colt AR15 Sporter chambered in the unusual caliber of 7.62X39mm. I use it for hunting deer in wooded terrain. Because of the taper of the cartridge case, a magazine that would normally hold 20 rounds of 5.56mm NATO ammunition will only hold 5 rounds of 7.62x39mm. Other than being semi-automatic and having lower ammunition capacity, it’s essentially the functional equivalent of a Model 1894 Winchester lever action rifle.
The Hoge household also owns another AR. It’s an AR-7, a take-down rifle that’s easy to carry packed away while backpacking or canoeing. The barrel, receiver, and magazine can be taken apart and stored in the stock. The current version made by Henry Repeating Arms will float either assembled or disassembled. It’s chambered in .22LR, so it’s cheap to shoot, and it’s accurate enough to take small game out to any range that such critters should be hunted with a .22.
UPDATE—Of course, the AR-7 does have a history in movie fiction as a sniper rifle. James Bond was issued one in From Russia With Love. I suppose that will be sufficient justification for Robert O’Rourke coming to confiscate our AR-7s as well.