Home / Accessory-Flash Hiders / AAC (Advanced Armament) BLACKOUT FH 51T 5.56MM 1/2×28 You cannot add "AAC (Advanced Armament) BLACKOUT FH 90T 5.56MM 1/2X28" to the cart because the product is out of stock. Sale! AAC (Advanced Armament) BLACKOUT FH 51T 5.56MM 1/2×28$9999 $8229 Out of stock SKU: 64141 Category: Accessory-Flash Hiders Product ID: 43791 Description Description 51 Tooth QD Suppressor Mount Related products Sale! SureFire WARDEN BLAST RGLTR MULTI DE $25000 $22862 Sale! SureFire MUZZLE BRAKE QD 338LAP 5/8X24 $19900 $18427 SureFire TRI-LUG QD M13.5X1LH RYDER MNT $6900 SureFire TRI-LUG QD 1/2X36 RYDER MOUNT $6900