A Filipino company named JP Factory, located in the Southern city of Bacolod, has developed a prototype submachine gun chambered in 9mm. It uses Glock magazines, has quad rails and a folding stock. Interestingly, it uses an AR-15 trigger mechanism.
Visiting to the Philippines and touring the many gun manufacturers over there is something I am very keen to do in the future. Quite a few of innovative guns are made for local shooters.
[ Many thanks to Manny for emailing me the photos and info. ]