Home / Accessory-Flash Hiders / AAC (Advanced Armament) BLACKOUT FH 51T 5.56MM 1/2×28 You cannot add "SureFire TRI-LUG QD M13.5X1LH RYDER MNT" 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 MUZZLE BRAKE QD 338LAP 5/8X24 $19900 $18427 Sale! SureFire 3-PRONG FH 7.62MM 5/8X24 $9900 $9834 Sale! SilencerCo ASR FLASH HIDER 1/2X28 $9400 $8606 Yankee Hill Machine Company FLASH HIDER PHANT 5.56 SMOOTH $3695