The Beretta PMX shares design features with the Beretta M12, which was supplied to many police forces and armed forces around the world. 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]
Since 2018, Italy's Carabinieri has ordered, after experimentation in some operational departments, more than 5,000 PMXs[1] with the future intention of modernizing the entire individual weapons arsenal. In March 2022 it was confirmed that the Saudi government awarded Beretta a contract for 3,500 PMXs to arm the Saudi Royal Guard Regiment.[2] As of February 2023, at least 47 Beretta PMXs have been ordered for the Elite Forces of Malaysia.[6]