Here's something interesting that I stumbled upon; a single shot (auto ejecting) .308 caliber AR-15 upper made by Franklin Armory. PRODUCTS From what I could find out by researching it, it is a regular AR-15 upper receiver with an enlarged ejection port and a .308 caliber chambered barrel. The bolt is from Bushmaster, which was designed for the .450 Bushmaster, but will hold a .308's diameter rim. The gas system appears to have an adjustable gas block and I'm guessing that they dialed the gas port down quite a bit. When shooting the upper on a regular lower, it ejects the empty shell automatically and the bolt is held open, allowing one to shove another .308 round into the gaping hole. In Pennsylvania, we cannot hunt with semi-autos at all (except for shotguns during waterfowl season, but who cares?). I see no practical reason why we as hunters could not hunt coyotes, groundhogs, or small game with a semi like many other states do. This may allow me to hunt black bear and coyotes with an AR. Yes, I have an LR-308, but I can't hunt with it. The beauty of this is my AR has a Chip McCormick trigger pack in it, along with some other goodies to allow for precision and ease of shooting. This upper cannot feed rounds any other way but singly, by hand. I cannot see how the game commission can have a fit about it; it's no more of a single shot rifle than an NEF break open.