I ordered it off gunbroker, and used Cabelas as the FFL. There is a stock like any AR platform. It just doesn't appear removable at all...that would be the brace? I'll get a photo off to you later tonight or tomorrow.
You’re fine then. Just don’t put a vertical foregrip on it, otherwise you are “manufacturing an SBR” because that means the pistol is intended to be held with two hands. Which we all know, only criminals hold pistols with two hands.