Rugged Suppressors | Obsidian Piston .578×28 | OP001

The Rugged Suppressors Obsidian piston (OP001) is a .578×28 threaded piston machined from 17-4 stainless steel with a copper finish. Its non-slotted design creates a full-circumference gas seal that is intended to reduce gas blowback for a cleaner shooting experience. The piston is heat treated for durability and is designed to interface with the Obsidian 45 suppressor system. When used on fixed-barrel platforms the spring must be replaced with a fixed barrel spacer.

Product Specifications

• The model is Suppressor Piston (OP001).
• The product type is Silencer Piston.
• The thread pattern is .578×28.
• The material is 17-4 Stainless Steel.
• The finish is Copper.
• The fit is Obsidian 45.
• The hand is Right Hand.
• The overall dimensions are 1.45 x 1.60 x 2.60.
• The height is 1.45.
• The width is 1.60.
• The length is 2.60.
• The weight is 0.1 (unit as provided).
• This product cannot be disassembled.
• When used on fixed-barrel platforms the spring must be replaced with a fixed barrel spacer.
• Country of origin is US.
• UPC: 859383006112.

Engineered for straightforward function and durability, the Obsidian piston provides a robust, heat-treated stainless-steel option for suppressor-equipped systems that require a full-circumference gas seal. Its non-slotted design targets reduced gas blowback and consistent operation over repeated use. Common applications include installation with the Obsidian 45 suppressor system and use on fixed-barrel platforms where a piston system is preferred.