Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR 1/2-28 RF # Gemtech THREAD PROTECTOR 1/2-28 RF #$1800 Out of stock SKU: 12222 Category: Accessory-Silencer Accessories Product ID: 26738 Description Description 1/2-28 Thread Protector Related products Sale! Dead Air Armament XENO MOUNT FLASH HIDER 1/2X28 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 Original price was: $7495.$7135Current price is: $7135. Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 SilencerCo O-RING BOOSTER PACK $900