Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN9 3 LUG ADAPT 13.5x1L View cart “Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN9 3 LUG ADAPT 13.5x1L$8500 $7561 Out of stock SKU: OA004 Category: Accessory-Silencer Accessories Product ID: 30576 Description Description M13.5X1 LH Related products Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 $8606 Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 $8351 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 SilencerCo DELTA 1/2X28 THREAD SPACER $1900