Rearden R2 Fh 5/8-24 Nitride
The Rearden R2 flash hider in 5/8-24 thread pitch with nitride finish is a Plan B-compatible muzzle device built for shooters who demand precision and durability. Whether you're running a precision rifle, a suppressed setup, or a dedicated range gun, the R2 is engineered to handle serious use. The black nitride finish delivers both corrosion resistance and a tighter seal—critical factors when you're stacking multiple components on your muzzle.
Built from 17-4 stainless steel and finished to 67 HRC surface hardness, this flash hider is constructed to withstand the rigors of centerfire rifle shooting. The nitride process creates a harder surface that resists fouling and maintains consistent performance across hundreds of rounds. If you're timing this device for a specific application or running it with a suppressor, proper installation matters—alignment, torque, and rockset are the foundations of a reliable suppressed system.
The R2 integrates with Atlas and Atlas XL mounting systems, making it a natural choice if you're already invested in that ecosystem. It's also compatible with standard Plan B mounts. Note that shims are not included but may be necessary depending on your barrel's threading relief; many builders stock them as a matter of course. Installation requires an alignment rod to verify the entire system concentricity before final torque, and the device itself should be torqued to 30 ft-lbs and rockset to lock everything in place permanently.
This is a no-frills, purpose-built muzzle component for shooters who understand that flash reduction and suppressor mounting go hand in hand. It's not a standalone flash hider for unsuppressed fire—it's infrastructure for a complete system. If you're building or upgrading a precision rifle with suppressor plans in mind, the Rearden R2 is worth serious consideration.
Key Features
- Compatible with Atlas, Atlas XL, and Plan B mounting systems
- Black nitride finish (67 HRC surface hardness) for durability and superior sealing
- 5/8-24 thread pitch for popular centerfire rifle calibers
- 17-4 stainless steel construction
- Designed for use with suppressor systems
- Requires alignment rod for proper concentricity verification
Specifications
| Brand | Rearden |
| Product Type | Muzzle Device / Flash Hider |
| Thread Pitch | 5/8-24 |
| Material | 17-4 Stainless Steel |
| Finish | Black Nitride (67 HRC Surface Hardness) |
| Mount Compatibility | Plan B, Atlas, Atlas XL |
| Recommended Torque (Device to Barrel) | 30 ft-lbs |
| Recommended Torque (Suppressor to Device) | 10 ft-lbs |
| Shims Included | No |
Frequently Asked Questions
Will the Rearden R2 work with my suppressor?
Yes—the R2 is designed for suppressor use. It features Plan B-type mounts compatible with quality cans. Before mounting a suppressor, ensure the muzzle device threads and tapers are clean, then torque the suppressor to 10 ft-lbs. Verify alignment with an alignment rod to confirm the entire system is concentric.
What thread pitch is this flash hider, and what calibers does it fit?
The R2 has a 5/8-24 thread pitch, which is the standard for most centerfire rifle calibers including .308 Winchester, 6.5 Creedmoor, and similar medium to large-bore rifles. Confirm your barrel's thread pitch before purchase.
Do I need shims, and what's involved in installation?
Shims are not included but may be required depending on whether your barrel has a thread relief. Many barrels don't, so it's worth checking with your gunsmith or barrel manufacturer. Installation requires an alignment rod to verify concentricity, torquing the device to 30 ft-lbs to the barrel, and rockset to lock it permanently in place.
What mounting systems is the R2 compatible with?
The Rearden R2 is compatible with Plan B-type mounts, Atlas, and Atlas XL mounting systems. If you're running a suppressor, ensure it shares compatible mounts for a seamless interface.

