Rearden Fhd Fh 1/2-28 Ht

The Rearden FHD FH 1/2-28 HT is a muzzle device adapter engineered for shooters running suppressor systems on Plan B–compatible platforms. Built from 17-4 PH H900 stainless steel and finished in a durable wheat coating, this adapter bridges your barrel and modular suppressor mounts with precision engineering designed to handle real-world use. The FHD FH is the updated version featuring larger wrench flats on the rear—a meaningful upgrade that makes installation and removal easier without sacrificing the rock-solid interface these systems demand.

Rearden's philosophy is straightforward: innovate, execute, and don't accept limitations. This adapter reflects that ethos. It's built to exacting tolerances for Plan B mounts, Atlas, and Atlas XL suppressors, but proper setup matters. You'll need an alignment rod to verify the entire system runs true before shooting. Clean all mating surfaces, torque the device to your barrel per spec, and Rockset it to lock everything in place. If you're pairing this with a Q suppressor, be aware that doing so will void your warranty—that's important to know upfront.

Note that shims are not included with this adapter. Depending on your barrel's threading design, you may need shims to achieve proper timing. Barrels without thread relief cuts will require shimming to dial in the suppressor's timing. Plan for that possibility when ordering, or contact us if you need guidance on your specific setup.

Key Features

• 17-4 PH H900 stainless steel for corrosion resistance and durability
• Larger rear wrench flats for easier installation and removal
• Compatible with Plan B mounts, Atlas, and Atlas XL suppressor systems
• Wheat-finish coating resists wear and corrosion
• Precision-engineered for true alignment with proper setup tools
• 1/2-28 thread pitch

Specifications

Frequently Asked Questions

What suppressor mounts does the Rearden FHD FH work with?

This adapter is designed for Plan B mounts, Atlas, and Atlas XL suppressor systems. Always verify your specific suppressor's mount interface before ordering. Note: using this with a Q suppressor voids the warranty.

Do I need shims for this adapter?

Shims are not included. You may need them depending on your barrel's design. If your barrel lacks a thread relief cut, you'll likely need shims to time the suppressor correctly. Consider having shims available, or consult your barrel manufacturer's specs before assembly.

How do I install the Rearden FHD FH properly?

Use an alignment rod to verify the entire system runs true. Clean all mating surfaces thoroughly, torque the adapter to your barrel per manufacturer specifications, then apply Rockset to lock it in place permanently. Never skip the alignment check—it's critical for safe operation.

What's different about this updated version?

The FHD FH features larger wrench flats on the rear compared to earlier iterations, making installation and removal noticeably easier while maintaining the same precision interface and 17-4 PH H900 steel construction.