PCC Showdown: H&K SP-5 vs Kalashnikov USA KP-9 vs CMMG Banshee

Cool Forgotten Weapons merch! Since SHOT Show this year, I have gotten three different 9mm carbines that are all interesting in their own ways. The Kalashnikov USA KP-9 is a virtual copy of the Russian Vityaz submachine gun, much more sophisticated than the other 9mm AKs available today. The CMMG Banshee is a delayed blowback AR with a very clever operating m