Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH You cannot add "Gemtech PISTON GM9/MM9/TUNDRA 1/2-28" to the cart because the product is out of stock. Gemtech THREAD PROTECTOR M13.5X1 LH$1800 Only 1 left in stock Gemtech THREAD PROTECTOR M13.5X1 LH quantity Add to cart SKU: 12223 Category: Accessory-Silencer Accessories Product ID: 26732 Description Description M13.5X1 LH Thread Protector Related products Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! Gemtech ADAPTER UMAREX RIFLES $4500 $4183 Sale! Rugged Suppressors OBSIDIAN PISTON 9/16×24 $8000 $7196 Gemtech THREAD PROTECTOR 1/2-28 RF $1800