ID this retractable stock

[Cutaway]

This retractable stock was seen on the KAC LAMG. It most likely could be used on an M4 etc. Does anyone here know who manufactures them?, what model it is?

https://ibb.co/Qd0CxJR

https://ibb.co/M9JxLDx

 

[dogtown tom]

I've seen that stock before.

Wikipedia says Magpul, but it doesn't appear on Magpuls website.https://en.wikipedia.org/wiki/Knight%27s_Armament_Company_LAMG

The photo looks like its displayed at SHOT or another trade show......and often those are not production guns. (credential lanyard on salesman in coat and tie)