Home / Accessory-Muzzle Brakes / AAC (Advanced Armament) MUZZLE BRAKE 90T 5.56MM 1/2X28 You cannot add "SilencerCo ALPHA DIRECT THREAD MT 1/2X28" to the cart because the product is out of stock. Sale! AAC (Advanced Armament) MUZZLE BRAKE 90T 5.56MM 1/2X28$11999 $10660 Out of stock SKU: 64244 Category: Accessory-Muzzle Brakes Product ID: 33241 Description Description Fits SR Series Only90 Tooth QD Suppressor Mount Related products Sale! Q WHISTLE TIP BLAST MITIGATOR $12500 $11715 Sale! Yankee Hill Machine Company QD FLASH HIDER 30CAL M14X1LH $10995 $9840 Sale! Ruger HYBRID MUZZLE BRAKE MATTE BLK $10695 $8502 Sale! Yankee Hill Machine Company MUZZLE BRAKE 5.56 QD 1/2-28 $10995 $9840