Full page ad in my January American Rifleman. It's a double barreled belly gun chambered for .45 ACP. It gives you two shots and then you break it open to reload. It holds two more rounds in a compartment in the grip. Only 14 ounces, available with either a titanium or aluminum frame.
No price listed in the ad.
Hmm. two rounds of .45 ACP ought stop most anything, if you can hit it. It's small. I don't want to think about recoil or muzzle blast. The .45 round kicks hard and is loud fired from the big government model 1911. It will be worse fired from a smaller lighter gun.
All in all, I think I would rather have five rounds of .38 Special than just two rounds of .45ACP.