GBLS is a Korean manufacturer of completely unique, in terms of internal design, AEG training carbines of the AR system, known as the DAS (Dynamic Action System).
We deliberately do not use the word "replicas", because the degree of recreation of a real weapon, functionality and operation, as well as effectiveness and efficiency, make them an excellent training tool. They dominate gas powered replicas of similar functionality because of their efficiency, resistance to dirt and external conditions, repeatability of shots or cost effectiveness.
Take a look at how the AR-15 DAS (GDR15) works:
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In September this year, GBSL has announced work on the AK carbine using the DAS system (LINK). Today another information on this subject was posted, this time containing a little more details.
The most important of these is the approximate date of release, stated as the first half of 2020. The price has not been given yet, but it certainly will not be low. The AR-15 carbines cost around 1700 USD.