Just wondering about military shotguns. In my circle of gun shows, dealers, etc., I have yet to spot one. The US-made WW1 shotguns have my interest and include Browning Auto A, Remington M1910A, Stevens M520, and Winchester M1897 and M1912 and others that I don't know about. I've only seen photos of them on the Internet, never the real thing. Which are commom? Which are rare? What's the going price? The Germans considered them inhumane. Imagine that.