Rearden Manufacturing Group Llc Helios Qd Atlas Mount 1.375''-24 Threads Black Nitride
The Rearden Helios QD Atlas Mount is a precision mounting interface engineered for the CGS Helios QD suppressor. This quick-detach mount uses a taper-lock system rather than traditional shoulder engagement, giving you a rock-solid connection that's quick to deploy and remove without losing zero. The Atlas adds just 0.775" of length, which means your Helios QD suppressor will clear most muzzle devices without needing an extension ring—a real advantage when you're building a compact, efficient suppressor setup.
Built from 17-4 PH H900 stainless steel and finished in black nitride for durability and corrosion resistance, this mount is purpose-built for the Helios QD and won't work with other suppressors. That laser focus on compatibility means you get a tight, predictable interface every time you mount it. At just 1.85 ounces, it won't throw off your rifle's balance, and the 1.375"-24 thread pitch fits standard AR and precision rifle platforms.
If you're running Rearden's own compact devices—the FHD, Mini, SPB, RPB, or R2S—the Helios QD Atlas Mount plays well with all of them. It's equally compatible with Plan B-spec muzzle devices and Q's Cherry Bomb, so you have real flexibility in how you configure your suppressor rig without chasing adapters.
Key Features
- Taper-lock quick-detach interface for secure, repeatable mounting
- Adds only 0.775" of length—minimal impact on overall suppressor stack height
- Allows Helios QD to work with most muzzle devices without extension rings
- Black nitride finish resists corrosion and wear
- Lightweight at 1.85 oz—no noticeable shift in rifle balance
- Compatible with Rearden FHD, Mini, SPB, RPB, and R2S devices
- Works with Plan B-spec and Q Cherry Bomb muzzle devices
Specifications
| Brand | Rearden Manufacturing |
| Mount Type | Quick-Detach (QD) Taper-Lock |
| Thread Size | 1.375"-24 |
| Length Added | 0.775" |
| Weight | 1.85 oz |
| Material | 17-4 PH H900 Stainless Steel |
| Finish | Black Nitride |
Frequently Asked Questions
Will the Helios QD Atlas Mount work with suppressors other than the CGS Helios QD?
No. The Helios QD Atlas Mount is designed exclusively for the CGS Helios QD suppressor. It will not fit other suppressors or mounting systems.
What muzzle devices is this mount compatible with?
The Helios QD Atlas Mount is compatible with Rearden's FHD, Mini, SPB, RPB, and R2S devices, as well as Plan B-spec muzzle devices and the Q Cherry Bomb.
Do I need an extension ring to use this mount with standard AR muzzle brakes?
In most cases, no. The added 0.775" of length allows the Helios QD to clear most standard muzzle devices without requiring an extension ring, though compatibility depends on your specific brake configuration.
How does the taper-lock system compare to shoulder-based mounting?
The taper-lock design secures the suppressor through a tapered interface rather than relying on the suppressor's shoulder, providing a consistent, repeatable connection that maintains zero across repeated mounting and removal cycles.

