There do seem to be some Full Auto Chinese AK Type 56 here in the US. It is also possible to purchase one, but I hear that there may only be a handful of them.
Prices for a pre-ban full auto transferable amnesty gun start at $25,000 or more.
Their prices are very very high, beginning with 5 digits, and you will have to file paperwork with the ATF to own and purchase a full auto machine gun.
The most recognizable difference is that there is a smaller safety lever stop than on the semi-autos, and there are also two notches, both with Chinese markings, indicating full auto and semi-auto.
The next difference is that there is a third hole that is part of the FCG (Fire Control Group). Yes, a Third hole. Sounds fun.
Well, the third hole has a pin that attaches to the Full Auto Sear in the Full Auto Type 56 Machine gun. This allows the sear to be held back in order not to re-lock as it would during semi-auto firing.
The 56 were made on Milled receivers and on 1.5mm stamped receivers.
This is Type 56 Chinese De-milled Parts kit. Full auto, but still a stamped receiver. With a European ribbed dust cover.
This is a Full auto Milled Chinese Spiker.
That's the way we like it.
Obviously staged, but with a nice Vietnamese mama san posing with a Type 56 Milled Spiker.
Full Auto Sear Cut Original Chinese Bolt Carrier.
Full Auto Bolt Carriers have an extra cut out for the automatic sear to operate.
Here is picture of a FA carrier.
Picture courtesy of Jopokk.