The Rearden Manufacturing FHD Flash Hider in 5/8-24 with a black nitride finish (Rearden Manufacturing part no. 10002) is machined from 17-4 PH H900 stainless steel. It is compatible with Rearden’s Atlas and Atlas XL mounts and with the Plan B system. The black nitride finish has a surface hardness of 67 HRC, and the nitride finish gives a tight seal on the mount. It is a rugged choice for a rifle that will wear a Rearden suppressor mount.

Key Specifications

• The thread is 5/8-24, one of the thread pitches Rearden offers on the FHD.
• The material is 17-4 PH H900 stainless steel, a high-strength alloy.
• The finish is black nitride, which resists wear and corrosion.
• The surface hardness is 67 HRC, measured on the nitride finish.
• The device weighs 1.69 ounces in 5/8-24.
• Overall length is 1.723 inches.
• It is compatible with Atlas and Atlas XL mounts.
• It is also compatible with the Plan B mounting system.
• Shims are not included, so order them separately if you want to time it.
• Rearden recommends torquing the muzzle device to about 15 to 25 foot-pounds.

Frequently Asked Questions

Are shims included? No. Rearden says shims are not included and are required if you want to time the device specifically.

What does it mount to? Rearden lists the FHD as compatible with Atlas and Atlas XL mounts and with the Plan B system.

How hard is the finish? Rearden lists the black nitride finish at 67 HRC surface hardness.

Buy the Rearden FHD Flash Hider, 5/8-24, Black Nitride

This FHD is a strong foundation for a Rearden suppressor setup in 5/8-24. More are in our rifle accessories and parts lineup. Order it from our Lubbock, Texas gun shop for fast, insured shipping.