Home / Accessory-Muzzle Brakes / AAC (Advanced Armament) MUZZLE BRAKE 51T 5.56MM 1/2X28 Sale! AAC (Advanced Armament) MUZZLE BRAKE 51T 5.56MM 1/2X28$11999 Original price was: $11999.$10660Current price is: $10660. Out of stock SKU: 64132 Category: Accessory-Muzzle Brakes Product ID: 47344 Description Description 51 Tooth QD Suppressor Mount Related products Gemtech QUICKMOUNT 7.62MM CC MB 5/8-24 $9900 Sale! SilencerCo ALPHA DIRECT THREAD MT 5/8X24 $8400 Original price was: $8400.$7816Current price is: $7816. Gemtech TRI-LOCK 338LAP MB 5/8-24 $15000 Sale! SilencerCo ALPHA DIRECT THREAD MT 1/2X28 $8400 Original price was: $8400.$7816Current price is: $7816.