Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR 1/2-28 RF You cannot add "Gemtech PISTON GM9/MM9/TUNDRA 1/2-28" to the cart because the product is out of stock. Gemtech THREAD PROTECTOR 1/2-28 RF$1800 In stock Gemtech THREAD PROTECTOR 1/2-28 RF quantity Add to cart SKU: 12222 Category: Accessory-Silencer Accessories Product ID: 26738 Description Description 1/2-28 Thread Protector Related products Sale! SIG SAUER MUZZLE BRK CL 7.62MM 90 DEG $17999 $16957 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 $8351 Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7495 $7135