Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH You cannot add "Rugged Suppressors OBSIDIAN PISTON 9/16x24" to the cart because the product is out of stock. Gemtech THREAD PROTECTOR M13.5X1 LH$1800 Out of stock SKU: 12223 Category: Accessory-Silencer Accessories Product ID: 26732 Description Description M13.5X1 LH Thread Protector Related products Sale! Rugged Suppressors OBSIDIAN9 3 LUG ADAPT 13.5x1L $8500 $7561 SilencerCo DELTA 1/2X28 THREAD SPACER $1900 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 $8606