Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON .578X28 Sale! Rugged Suppressors OBSIDIAN PISTON .578X28$8000 Original price was: $8000.$7196Current price is: $7196. Only 1 left in stock Rugged Suppressors OBSIDIAN PISTON .578X28 quantity Add to cart SKU: OP001 Category: Accessory-Silencer Accessories Product ID: 30006 Description Description 17-4 Stainless Steel Related products Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7895 Original price was: $7895.$7188Current price is: $7188. Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 Sale! SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK $9400 Original price was: $9400.$8606Current price is: $8606. Sale! Dead Air Armament XENO MOUNT FLASH HIDER 1/2X28 $8900 Original price was: $8900.$8472Current price is: $8472.