Home / Accessory-Silencer Accessories / SilencerCo PISTON M13.5X1LH View cart “SilencerCo O-RING BOOSTER PACK” has been added to your cart. Sale! SilencerCo PISTON M13.5X1LH$8900 Original price was: $8900.$8211Current price is: $8211. Out of stock SKU: AC26 Category: Accessory-Silencer Accessories Product ID: 44496 Description Description 9mm Piston For Osprey/OctaneThread for Sig,HK,WaltherGlock Factory Thread Barrel Related products SilencerCo O-RING BOOSTER PACK $900 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 Original price was: $7495.$7135Current price is: $7135. Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 Original price was: $8900.$8211Current price is: $8211. Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 Original price was: $8900.$8351Current price is: $8351.