Prototype Locked-Breech 9x19mm Mauser HSc
This video details a rare locked-breech 9x19mm Mauser HSc prototype, designed by Alex Seidel based on Josef Nickl's rotating barrel patent. Unlike the standard blowback HSc, this prototype featured a more robust locking system for military applications. Despite its advanced design, it failed to secure military contracts due to German military preference for exposed barrels, leading Mauser to develop the HSv and ultimately losing to the Walther P38.









