Confirmed with a still from Century's PSL video, they are true Romanian surplus "3rd pin" type and are being recalled like the original batch that were recalled and sawed up. Sad news for anyone who shelled out $1500 or so and now has to send their "machine gun" back.
The not really a machine gun safety sear axis pin is just above the mag catch. Example of a legal in Europe PSL from Designated Marksman dot net
Screen shot from Century's YouTube video
The not really a machine gun safety sear axis pin is just above the mag catch. Example of a legal in Europe PSL from Designated Marksman dot net
Screen shot from Century's YouTube video