The PMX was presented in 2017 and is intended to replace the Beretta M12 as an ordinance weapon of some law enforcement in Italy.
Around 2015–2016, there were many rumours about the release of a new submachine gun model that was then presented by Beretta during the "Milipol" exhibition in Paris in 2017.
[5] The Beretta PMX is a closed bolt and blowback operated submachine gun made by engineering plastic and aluminum.
It is fed with a 30-round magazine, chambered in 9×19mm Parabellum NATO caliber, shooting a 900 rounds/min rate of fire.
[3][4] It has an ambidextrous three-position manual safety with selective fire (semi-automatic and full auto), adjustable folding sights and "MIL-STD 1913" picatinny rails that allow to use various accessories as aiming devices of any type.