Home / Accessory-Silencer Accessories / Gemtech THREAD PROTECTOR M13.5X1 LH View cart “SilencerCo DELTA 1/2X28 THREAD SPACER” 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 Gemtech ADAPTER S&W M&P22C/22LR $6200 Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Gemtech ADAPTER GSG-1911 M9X.75-1/2-28 $4500 $4183 Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561