REARDEN ATLAS ALPHA 1.125X28 HT

The Rearden Atlas Alpha 1.125x28 HT is a thread adapter designed to bridge suppressor compatibility gaps for shooters running short Rearden suppressors. If you've got a Rugged Obsidian 9/45 or another suppressor with 1.125x28 internal diameter threading, and you want to mate it to a shorter Rearden device like the FHD, Mini, SPB, RPB, or R2S, this adapter makes that connection possible. Heat-treated construction and gold finish deliver durability and visibility in the shop or field.

Suppressor adapters are often overlooked until you need one—then they become essential. This is especially true if you're mixing suppressor ecosystems or working with a host of different host rifles and muzzles. The Atlas Alpha keeps your setup flexible without forcing a complete hardware swap.

Rearden builds their adapters with precision tolerances, so you get a solid mechanical fit that won't rattle or walk loose. Whether you're a dedicated suppressor collector or someone who inherited mismatched hardware, this 1.125x28 adapter is straightforward engineering: take it home, thread it on, and get back to shooting.

Key Features

• Enables compatibility between 1.125x28 internal-diameter suppressors (like Rugged Obsidian 9/45) and short Rearden devices
• Heat-treated finish for strength and extended service life
• Gold anodize for corrosion resistance and easy visual identification
• Precise thread fit for minimal play and reliable performance

Specifications

Frequently Asked Questions

What suppressors does the Atlas Alpha 1.125x28 work with?

This adapter is designed for suppressors with 1.125x28 internal diameter threading, including the Rugged Obsidian 9/45. It allows those suppressors to mount on short Rearden devices like the FHD, Mini, SPB, RPB, or R2S.

Can I use this adapter with other suppressor brands?

This adapter is engineered for Rearden short suppressor devices and suppressors with 1.125x28 internal threading. Compatibility outside that specification is not documented here.

Do I need any other components to install the Atlas Alpha?

The adapter threads directly onto both the suppressor and the Rearden device. No additional components are listed as required for installation.

What makes the heat-treated gold finish important?

Heat treatment increases material hardness and wear resistance, extending the adapter's service life. The gold finish provides both corrosion protection and a visual cue for quick identification in the field or shop.