Fritz Mann Model 1921: Chamber-Ring-Delayed Blowback
The Fritz Mann Model 1921 is a rare German pocket pistol utilizing a unique chamber-ring-delayed blowback system for its .25 ACP caliber. This system relies on the cartridge brass expanding into a machined ring in the chamber to delay extraction. While innovative, it poses potential reliability issues if the brass is not sufficiently strong, risking premature opening and debris scatter. The pistol also features a distinctive dual-purpose ejector/loaded chamber indicator and an out-of-battery safety.









