Be Swiss. Takes an AK platform and make it NATO spec by chambering in 5.56mm NATO with "Rolex" standards. Then, take that same 5.56mm firearm and turn it back into an AK by chambering it in 7.62x39mm, but make it 10x more expensive.
SIG SG 553-R, a variant of the SG 553 in 7.62x39mm. Can accept all sorts of AK magazines and basically handles exactly the same as your regular AK-47 variants. Available selector fire mode includes: single, 3 round burst and full auto.
Asset was made re-using my SG 553 project, with the receiver's bolt and chamber mesh edited to 7.62mm proportions. And I also removed the bolt release since the 553-R variant doesn't have it. I guess you can say it's an extension of my SG 553 project.
Asset is available for purchase on CG Trader, packed with my SG 553: https://www.cgtrader.com/3d-models/military/gun/sig-sg-553-assault-rifle-pack-game-asset
Sketchfab Render