Rugged Obsidian M13.5x1 LH Suppressor Piston

Rugged Suppressors Piston Design

The Rugged Obsidian piston represents a thoughtful approach to suppressor engineering. Its non-slotted design creates a full circumference gas seal that significantly reduces gas blowback—a consideration that matters when you're spending hours at the range or in the field.

Construction and Durability

Material: 17-4 stainless steel, machined and heat-treated for long service life. This material choice reflects Rugged's commitment to reliability under demanding conditions.

Compatibility and Installation

This piston is threaded M13.5x1 LH (left-hand) and is designed for use with Rugged Obsidian 45 suppressors on reciprocating bolt firearms.

Important: When installing this piston on fixed barrel platforms—such as carbines or subguns—the internal spring must be replaced with a Fixed Barrel Spacer. This modification ensures proper function and prevents damage to the suppressor.

Performance Advantage

The full circumference gas seal created by the non-slotted design reduces the uncomfortable gas blowback that can occur with slotted designs, making your shooting experience more pleasant and your firearm more controllable.