Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH You cannot add "SIG SAUER MUZZLE BRK CL 5.56MM 25 DEG" 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 OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561 Sale! Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28 $8500 $8444 Gemtech PISTON GM9/MM9/TUNDRA 1/2-28 $8000 Sale! Gemtech ADAPTER SIG MOSQUITO $4500 $4183