Home / Accessory-Silencer Accessories / Yankee Hill Machine Company UNIV RIFLE ADAPTER M13.5X1 LH# View cart “Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28” has been added to your cart. Sale! Yankee Hill Machine Company UNIV RIFLE ADAPTER M13.5X1 LH#$6850 $6614 Out of stock SKU: YHM-2145-M Category: Accessory-Silencer Accessories Product ID: 30423 Description Description Fits any 1-3/8-24 Rear ThreadM13.5X1 LH TPIFits Most Suppressor Brands Related products Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 $6042 Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 $8715 Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 $8351 SilencerCo DELTA 1/2X28 THREAD SPACER $1900