You mean M-lok? Theres Keymod then Magpul has M-lok and MOE that are slightly different. I would say eventually M-lok will have more of the market simply because magpul is the go to for most AR makers furniture.
The QD M-lok mounts are really cool.
https://www.youtube.com/watch?v=x27g4TNuvnM
If that becomes the norm for magpul I can definitely see m-lok coming out on top.