Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN45 3 LUG ADAPT .578×28 Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT .578×28$8500 Original price was: $8500.$7561Current price is: $7561. Out of stock SKU: OA010 Category: Accessory-Silencer Accessories Product ID: 31468 Description Description .578×28 Related products Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 Original price was: $7495.$7135Current price is: $7135. Sale! Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28 $8500 Original price was: $8500.$8444Current price is: $8444. Gemtech PISTON GM-45 LID USP $14800 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100