Rearden Alpha Atlas Plan-B Compatible Thread Adapter - 1.125x28 Threads - Heat Treated Finish

Rearden Alpha Atlas Plan-B Compatible Thread Adapter
1.125x28 Threads - Heat Treated Finish

Unlock next‑level suppressor performance with the Alpha Atlas, a precision‑engineered mounting interface built for shooters who demand reliability, compatibility, and rugged durability. Designed specifically for suppressors using 1.125‑28 inside‑diameter threading—including popular models like the Rugged Obsidian 9 and Obsidian 45—the Alpha Atlas delivers a secure, repeatable lock‑up that enhances accuracy and confidence on every shot.

Machined from 17‑4 PH H900 stainless steel and finished with a heat‑treated coating, this adapter is built to withstand extreme use, high heat, and harsh conditions. Its lightweight profile adds only 0.350" of length and just 1.22 oz, making it an ideal upgrade for shooters who want strength without unnecessary bulk.

Compatible with a wide range of short Rearden devices and Plan B‑style muzzle devices—including the Q Cherry Bomb—the Alpha Atlas gives you the flexibility to run your setup exactly the way you want. Whether you’re optimizing a suppressed carbine or building a modular pistol‑caliber platform, this mount delivers the durability, precision, and versatility modern shooters expect.

1.125‑28 Alpha Thread Compatibility
Designed for suppressors like the Rugged Obsidian 9/45 for secure, reliable mounting.

Premium 17‑4 PH H900 Steel
Heat‑treated stainless construction ensures exceptional strength and long‑term durability.

Lightweight, Low‑Profile Design
Adds only 1.22 oz and 0.350" of length for minimal impact on handling.

Plan B‑Style Device Compatibility
Works with Q Cherry Bomb and other Plan B‑compatible muzzle devices for maximum modularity.

Short Rearden Device Support
Fully compatible with FHD, Mini, SPB, RPB, and R2S for expanded setup options.

Heat‑Treated Finish
Built to withstand high‑temperature suppressor use without deformation or wear.

Optimized for Performance
Provides a stable, repeatable interface that enhances accuracy and consistency.

Not for Low‑Profile Adapters
Avoid use with suppressors like the Omega 9K that rely on low‑profile mounting systems.

Specifications

• Weight: 1.22 oz
• Length Added: 0.350"
• Thread Pitch: 1.125‑28 (SilencerCo Alpha pattern)
• Material: 17‑4 PH H900 stainless steel
• Finish: Heat‑treated
• Suppressor Compatibility: Rugged Obsidian 9, Obsidian 45, and other 1.125‑28 ID threaded suppressors
• Muzzle Device Compatibility: Q Cherry Bomb and other Plan B‑compatible devices
• Rearden Device Compatibility: FHD, Mini, SPB, RPB, R2S