Glock makes a machine pistol (fully auto) G18... he calls his pistol a G17. which comes from the factory with a connector (disconnector) allowing only one shot to fire with each pull of the trigger... his must have had its fire control group modified to shoot full auto...in the US, full auto and supressed firearms, along with short barreled rifles under 16" and short barreled shotguns under 18" may be owned, but are registered through a lengthy process with the bureau of Alcohol, Tabacco, and Firearms (ATF)..and require a special Tax Stamp for each firearm and supressor... different requlation in Europe and other juristictions...