Home / Accessory-Silencer Accessories / SilencerCo PISTON .578X28 Sale! SilencerCo PISTON .578X28$8900 Original price was: $8900.$8211Current price is: $8211. In stock SilencerCo PISTON .578X28 quantity Add to cart SKU: AC24 Category: Accessory-Silencer Accessories Product ID: 51800 Description Description Piston for Osprey/Octane Related products Sale! Dead Air Armament XENO MOUNT FLASH HIDER 5/8X24 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! SIG SAUER FLASH HIDER CL 5.56MM 90 DEG $17999 Original price was: $17999.$16957Current price is: $16957. Sale! Dead Air Armament WOLVERINE INSERT 24MM RH LONG $8900 Original price was: $8900.$7865Current price is: $7865. Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100