@Powerfromspace1 @pstyle0ne1 Basically it's a #System98- or #Nagant-Style Mechanism that then is combined with pre-existing HMG/AA-Cannon barrels.

Kinda like the #PTRD41...
https://www.youtube.com/watch?v=cUO3Bmt5XTQ

PTRD 41: The Simple Soviet Antitank Rifle of WWII

YouTube