It's American Red 9. It's converted to 9m/m in the US.
Historically, Chinese were not hot on 9m/m. Red 9, although being a common variation, is very rare in China. The reason is unclear. In theory, international surplus gun dealers could dump Red 9s to Chinese warlords in 1920s, just like they dumped so many prewar and wartime 7.63m/m, but somehow that did not happen.
|