REARDEN PNW FH .375 5/8X24 NITRIDE

Description

The Rearden PNW is a flash hider built around suppressor compatibility — specifically designed to work with Rearden’s Atlas, AtlasXL, and Plan B mounting systems. That integration is the core reason to choose it over a conventional flash hider. Rather than functioning purely as a standalone muzzle device, the PNW serves double duty: it manages muzzle flash at the brake end while providing the interface geometry needed for Rearden’s suppressor adapter family to attach cleanly and repeatably.

The 5/8×24 thread pitch makes it a direct fit for .308-class rifles, the most common threading for that bore diameter. The bore itself is cut at .375, which keeps clearance tight enough to maintain flash suppression effectiveness without creating unnecessary annular gap around the projectile path. A sloppy bore on a flash hider degrades its tines’ ability to redirect combustion gases — the PNW’s bore dimension avoids that compromise.

Rearden finished this device in nitride, a surface treatment that diffuses into the steel rather than sitting on top of it. The practical result is a hardened surface that resists corrosion and heat cycling without adding meaningful dimension to the part — relevant when you’re threading a mount over it repeatedly. The finish is designated Nitride by Rearden, and it presents as black. For a muzzle device that will see suppressor cans threaded on and pulled off with regularity, that durability is a functional consideration, not just cosmetic.

If you’re running a Rearden Atlas or Plan B suppressor mount and need a compatible host device on a 5/8×24-threaded rifle, this is the intended pairing.