An in-depth look into the EMG/Toxicant KP-9 gas blowback SMG by Jaeger Precision. This is essentially a fancy, licensed version of the Well-Pro Strike Industries PP-19. He notes that while it arrives with a sturdy steel receiver and pre-installed performance parts like an adjustable power valve, it also comes with a few freebies that are better off in the bin.

Forgotten Weapons has put up a feature video of the Kalashnikov USA KP-9, which is Kalashnikov USA's take on the PP-19-01 Vityaz SMG... "The PP-19-01 Vityaz is a development of the PP-19 Bizon, a submachine gun developed by Izhmash at the request of the Russian Interior Ministry in the early 1990s.