Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH You cannot add "SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK" 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! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 Original price was: $8900.$8211Current price is: $8211. SilencerCo O-RING BOOSTER PACK $900 Gemtech ADAPTER S&W M&P22C/22LR $6200 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715.