That is not a muzzle brake... just FYI...
i have for sale a used 16" factory ACR barrel with factory flash hider thingy
has just under 1,000 rounds through it
asking $100 shipped usps in the US, payment via paypal
Last edited by chrismshanks; 09-27-2019 at 11:23 AM. Reason: flash hider thingy, lowered price
lowered price to $150
lowered to $100