Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN45 3 LUG ADAPT .578×28 View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT .578×28$8500 $7561 Out of stock SKU: OA010 Category: Accessory-Silencer Accessories Product ID: 31468 Description Description .578×28 Related products Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK $9400 $8606 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865 Gemtech ADAPTER S&W M&P22C/22LR $6200