Rearden FHD

The Rearden FHD is a suppressor-compatible muzzle device designed to work with Atlas-style mounting systems, including Atlas, Atlas XL, and Plan B interfaces. Offered in a wide range of thread pitches such as 1/2x28, 5/8x24, .578x28, 14x1 LH, and 9/16x24 LH, it supports compatibility across various rifle and pistol platforms. Its design allows for secure attachment when properly installed, and timing may require shims depending on barrel configuration.

Manufactured from 17-4 PH stainless steel (H900 heat treated) and finished with a black nitride coating, the FHD is built for durability and corrosion resistance. The updated design includes enlarged wrench flats for easier installation. As with all muzzle devices, proper alignment, torque, and installation practices are critical for safe and reliable operation.

Specifications

• Thread Pitch Options:
  • 1/2x28 (.375" bore)
  • 5/8x24 (.375" bore)
  • .578x28 (.48" bore)
  • 14x1 LH
  • 9/16x24 LH
• Additional variants available (e.g., 13.5x1 LH, 13x1 RH/LH, tapered options)
• Material: 17-4 PH Stainless Steel (H900)
• Finish: Black nitride (approx. 67 HRC surface hardness)
• Compatibility: Atlas, Atlas XL, Plan B systems
• Overall Length: 1.723″
• Length Added: Approximately 0.91″–1.198″ (varies by thread type)
• Weight: Approximately 1.69 oz – 2.20 oz (varies by thread type)
• Atlas XL Adapter Overrun: None
• Wrench Flats: Enlarged rear flats for installation
• Shim Requirement: Not included; may be required for proper timing
• Recommended Torque (Muzzle Device): 15–25 ft-lbs
• Recommended Torque (Suppressor): 10 ft-lbs