Pretty slick. What I can tell you is that if you enjoy firing your SBR/Pistol AR with others, don't put that brake on it . It works extremely well for clearing the firing line at the crowded public range though. Also good for scaring the s*** out of your buddies when they don't expect it while they are shooting. The concussion and fireball is impressive
I have not seem this type of take down version but i have seen other version of take down rifles that were very repeatable when put back together. Of course with a Shorter barrel / Pistol AR your not looking for the same Accuracy as you would be in a long range rifle.
I just would not want to try and assemble in a hurry