Home / Accessory-Silencer Accessories / SilencerCo PISTON M13.5X1LH View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” 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 Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606. Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 Original price was: $8900.$8211Current price is: $8211.