Pictured is an unknown 9mm machine pistol which has been seized in the Netherlands and more recently in the UK. ‘R9-Arms Corp USA’ appears to be a fictional company, suggesting it has been manufactured illicitly. The model is made to a very professional standard with a milled receiver and slide, perhaps even produced in a former legitimate arms factory in a country such as Croatia. It appears to accept an Uzi type magazine and can fire semi or fully automatically.
The ATF in the USA were consulted on its origin and apparently had no matches on record.
An example fitted with a suppressor was recently seized in the United Kingdom from a Dutch lorry driver.
Two examples among guns seized by Dutch police, its small size apparent:
Perhaps a reader out there might be able to shed more light on its origins?
Edit: looks as though my guess of Croatia may be correct, seeing as how a large number were seized there last month. Their actual source is however still unknown.