TL;DR
NORK Helical Magazine. Also, no mention at all about the NORK Overfolder stocks.“This was more about sending a message than being combat effective,” said Michael Pregent, a former Army Intelligence Officer with over 28 years of experience working conflicts around the world and now an adjunct fellow at the Hudson Institute in Washington, D.C.
Some of the most memorable images to emerge from North Korea’s dramatic parade featured the special operations “commandos” who were carrying what appeared to be AK-47’s with grenade-launching capabilities. There’s just one problem, Pregent said. “Where are the magazines? There's no place for the magazine to go with the mock grenade launcher in the way,” Pregent noted, calling it a “fake capability.”
I've not heard anything about how reliable the helicals are on an AK, but it isn't necessarily new tech either.
I guess some experts just aren't gun folks.
ETA- He also doesn't seem to understand rifle grenades, RPGs, and chrome plating.