Home / Accessory-Silencer Accessories / SilencerCo PISTON M13.5X1LH View cart “Rugged Suppressors R3 FLASH HIDER M18X1” 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 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 Original price was: $7495.$7135Current price is: $7135. Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Rugged Suppressors OBSIDIAN PISTON 9/16×24 $8000 Original price was: $8000.$7196Current price is: $7196.