I took the low profile Vz Semi-auto fcg system and put it into the KP-44
lower. This can also apply to the PPS-43.
Today was the test firing, and it was successful.
SBR necessary on this build because the barrel is 10"
This Finnish model is base on the PPS-43 design, but uses the 9mm Suomi
mags and drum. I shredded my heavy bag downstairs testing this thing.
Totally worth the mess.