The Rugged Suppressor SP001 Fixed Barrel Spacer in copper finish is a purpose-built accessory for shooters running a Rugged Obsidian suppressor on fixed-barrel hosts. If you're looking to get more versatility out of your Obsidian—especially for .22 LR shooting—this spacer replaces the standard spring mechanism and works in tandem with the Obsidian's piston to deliver a tailored fit for carbines, subguns, and other fixed-barrel platforms where the spring-based design doesn't apply.

The fixed barrel spacer approach solves a common problem: factory suppressors are engineered around one specific host type, but your shooting needs often span multiple platforms. By substituting the spring with this solid spacer, you unlock compatibility with fixed-barrel rigs that would otherwise be off-limits. This is particularly valuable if your .22 LR gun roster includes both semi-auto rifles and quieter, fixed-barrel builds.

Installation and function are straightforward. Pair the SP001 with your Rugged Obsidian piston, follow Rugged's recommended torque and assembly steps, and you're ready to suppress. The copper finish resists corrosion and blends cleanly with most builds. Note that this spacer is not compatible with 3-lug or fixed-mount configurations, so verify your Obsidian's attachment method before ordering.

Key Features

• Engineered specifically for .22 LR use with the Rugged Obsidian suppressor
• Replaces the spring mechanism to enable fixed-barrel host compatibility
• Works with the Obsidian piston for reliable, modular function
• Corrosion-resistant copper finish
• Ideal for .22 LR carbines, subguns, and other fixed-barrel platforms

Specifications

Product Name	Rugged Suppressor SP001 Fixed Barrel Spacer
Finish	Copper
Caliber	.22 LR
Compatible Suppressor	Rugged Obsidian
Host Type	Fixed-barrel (carbines, subguns, etc.)
Function	Spring replacement; used with Obsidian piston
Not Compatible With	3-lug mounts, fixed mounts

Frequently Asked Questions

What suppressor does the SP001 work with?

The Rugged Suppressor SP001 Fixed Barrel Spacer is designed for use with the Rugged Obsidian suppressor. It replaces the Obsidian's spring and pairs with the piston to adapt the suppressor to fixed-barrel hosts.

What firearms can I use this spacer on?

The SP001 is intended for fixed-barrel hosts—typically .22 LR carbines, subguns, and other builds where the barrel does not move. It is not compatible with 3-lug or fixed-mount attachment systems, so verify your Obsidian's mounting method first.

Do I need anything else to make this work?

Yes. The SP001 works in conjunction with your Rugged Obsidian suppressor and its piston. You'll need both the spacer and the piston assembled correctly according to Rugged's instructions to function properly on a fixed-barrel host.

Why would I use a fixed barrel spacer instead of the standard spring?

The spring-based design in a standard Obsidian is meant for semi-auto hosts where the barrel cycles. Fixed-barrel platforms don't have that cycling action, so the spacer provides a solid connection that works reliably in that configuration.