Home / Accessory-Silencer Accessories / Yankee Hill Machine Company QD MOUNT THEAD PROTECTOR View cart “Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28” has been added to your cart. Yankee Hill Machine Company QD MOUNT THEAD PROTECTOR$1995 Only 1 left in stock Yankee Hill Machine Company QD MOUNT THEAD PROTECTOR quantity Add to cart SKU: YHM-3114 Category: Accessory-Silencer Accessories Product ID: 32647 Description Description Related products Gemtech PISTON GM-45 LID MK23 $14800 Sale! Rugged Suppressors M2 BRAKE 5/8X24 $10000 Original price was: $10000.$8715Current price is: $8715. SilencerCo O-RING BOOSTER PACK $900 Sale! Rugged Suppressors R3 FLASH HIDER 9/16X24 $10000 Original price was: $10000.$8715Current price is: $8715.