Rearden 10001 FHD .375 Cal 1/2x28 Flash Hider - Plan B Mount - Black Nitride

The Rearden FHD is a precision flash hider engineered to anchor the company's Plan B attachment system, giving shooters a muzzle device that works as a stand-alone flash hider and as the mounting point for a Plan B-compatible suppressor adapter. Machined from 17-4 PH H900 stainless steel and finished in Black Nitride to a 67 HRC surface hardness, the FHD is built to handle the heat and pressure of hard use while resisting corrosion.

This variant carries 1/2x28 threads with a square shoulder and a .375 bore. When paired with the appropriate Atlas, Atlas XL, or Plan B mount or suppressor adapter, the FHD provides a secure, repeatable lock-up on the same Plan B interface used across Rearden's lineup.

At just 1.723" long and weighing only 2.17 oz, the FHD adds minimal length and weight to your host. The updated design features larger wrench flats for easy installation and removal with a standard armorer's tool. Whether you run it as a stand-alone flash hider or as the anchor for a Plan B-compatible suppressor, the Rearden FHD delivers a premium fit and finish in a compact, hard-use package.