Home / Accessory-Silencer Accessories / SilencerCo PISTON 5/8X24 View cart “Gemtech GM9 THREAD REAR MOUNT M18X1RH” has been added to your cart. Sale! SilencerCo PISTON 5/8X24$8900 Original price was: $8900.$8211Current price is: $8211. In stock SilencerCo PISTON 5/8X24 quantity Add to cart SKU: AC30 Category: Accessory-Silencer Accessories Product ID: 58752 Description Description Piston for Osprey/Octane300 AAC Blackout Subsonic Related products Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Sale! Gemtech ADAPTER GSG-1911 M9X.75-1/2-28 $4500 Original price was: $4500.$4183Current price is: $4183. Sale! SIG SAUER MUZZLE BRK CL 7.62MM 90 DEG $17999 Original price was: $17999.$16957Current price is: $16957. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 Original price was: $7495.$7135Current price is: $7135.