Brazilian of course.
Apparently this is chambered in .40. From Brazil of course.
A couple of shotguns seized by Brazilian police in recent months.
An example perhaps employed as a motorcycle swivel gun.
When these things are fired the whole magazine emptying sounds like one single shot. Caliber .380.
A number of Brazilian gang weapons seized in 2020 including a homemade shotgun and box tube type MAC SMG.
Typical and increasingly common improvised backstreet SMGs seized from a neighborhood in Brazil.
A copy of a MAC-11 chambered in .380 seized yesterday in Bahia state, Brazil. Slightly different proportions and position of threads on the barrel make it easy to tell apart from an original.