Put this together last night instead of getting good sleep like a smart adult would.
The gun is a boat anchor compared to others as the gun with no mag or suppressor is 6 lbs, 3oz. I am running a 11.5" BCM upper for now while I figure out how this works for me. I did do some dry movement to get into firing positions and put tension on the gun to simulate what is needed for recoil control. I REALLY like the 45 deg mount for compressing the gun. I do not get as compressed as @RustyCrusty but I am running an aimpoint pro so I don't have as much rail to move up too. My charging handle when compressed sits right under my cheek bone.
PS, feel free to pick on me about being a poor with my keymod, aimpoint pro etc. I get it.