Schwarzlose M1907/12 Heavy Machine Gun
The Schwarzlose M1907/12 is a unique delayed blowback heavy machine gun that served as the standard for the Austro-Hungarian Empire in WWI. Its design, by Andreas Schwarzlose, bypassed existing patents and featured a water-cooled, fixed barrel system. Notable features include a closed-bolt firing mechanism, an internal oil pump for lubrication, and a distinctive sprocket-based belt feed requiring multiple charging handle cycles.









