I'm wondering for those of you that have an AAC can, which QD mount are you using? Which one would you suggest for either a 14.5", 16" or 18" barrel with middy gas system? I've got the Blackout 51T muzzle brake on my SBR, mainly got it for the extra protection for the baffles. Would the Brakeout or Blackout Flash hider be better for these new options?