Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON .578X28 View cart “SilencerCo O-RING BOOSTER PACK” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN PISTON .578X28$8000 Original price was: $8000.$7196Current price is: $7196. Out of stock SKU: OP001 Category: Accessory-Silencer Accessories Product ID: 30006 Description Description 17-4 Stainless Steel Related products Sale! Dead Air Armament XENO QD NOMAD MOUNT $13900 Original price was: $13900.$11895Current price is: $11895. Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606. Gemtech ADAPTER MM9 FTM 1/2-28 $7500