Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH View cart “SIG SAUER MUZZLE BRK CL 7.62MM 90 DEG” has been added to your cart. 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! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 Original price was: $8900.$8351Current price is: $8351. Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 Sale! SilencerCo CHARLIE DIRECT THRD MT 5/8X24 $9900 Original price was: $9900.$9001Current price is: $9001. Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 Original price was: $10000.$8715Current price is: $8715.