WWI Austrian anti-aircraft gun improvised from C96 Mauser pistols.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...a_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net..._pistol_aa.jpg
Previously:
https://www.homemadetools.net/forum/...352#post169508
https://www.homemadetools.net/forum/...239#post150089
https://www.homemadetools.net/forum/...546#post162588
