The PM-9 is produced by the Nippon Miniature Bearing Company, otherwise known as Minebea.
The design is analogous to the Mini-Uzi submachine gun.
It was adopted in 1999 for non-frontline forces such as vehicle drivers, artillery personnel, some of its special forces units, and some commissioned officers who were given priority for better equipment.

Though it has been the official submachine gun for more than a decade, as of 2009 JSDF officials are looking at a possible replacement, as it is planned to phase it out in the near future.
One possible replacement is the Heckler & Koch MP5.
JSDF troops assigned to guard duty on both Japan Maritime Self-Defense Force (JMSDF) and JASDF garrison bases had their PM-9s replaced with other high-performing submachine guns, and the JGSDF will also eventually replace the PM-9.
The PM-9 is produced by the Nippon Miniature Bearing Company, otherwise known as Minebea. The design is analogous to the Mini-Uzi submachine gun. It was adopted in 1999 for non-frontline forces such as vehicle drivers, artillery personnel, some of its special forces units, and some commissioned officers who were given priority for better equipment.
Though it has been the official submachine gun for more than a decade, as of 2009 JSDF officials are looking at a possible replacement, as it is planned to phase it out in the near future. One possible replacement is the Heckler & Koch MP5. JSDF troops assigned to guard duty on both Japan Maritime Self-Defense Force (JMSDF) and JASDF garrison bases had their PM-9s replaced with other high-performing submachine guns, and the JGSDF will also eventually replace the PM-9.
Minebea PM-9