Home / Accessory-Silencer Accessories / SilencerCo DELTA THREAD PROTECTOR 1/2X28 You cannot add "Gemtech PISTON GM-45 LID MK23" to the cart because the product is out of stock. SilencerCo DELTA THREAD PROTECTOR 1/2X28$1900 Out of stock SKU: AC6 Category: Accessory-Silencer Accessories Product ID: 53273 Description Description Thread Protector W/ O-ring Related products Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Gemtech ADAPTER MM9 5/8-24 300BLK $7500 Sale! Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28 $8500 Original price was: $8500.$8444Current price is: $8444. Sale! Rugged Suppressors FLASH HIDER FRONT CAP 5.56 $10000 Original price was: $10000.$8715Current price is: $8715.