The Rearden Manufacturing FHD Flash Hider is a purpose-built, precision-machined muzzle device designed to reduce flash signature on rifles threaded in 1/2x28-ideal for 5.56 NATO or .223 Rem platforms. Engineered for performance and compatibility, the FHD is not only a highly effective flash hider but also fully integrates with Rearden's R Series mounts (R2S, RPB, and Atlas), making it suppressor-ready out of the box. Crafted from high-strength 17-4 stainless steel and heat-treated for durability, the FHD features aggressive porting that disrupts muzzle flash and helps preserve your vision in low-light or night-firing conditions. Unlike generic A2-style flash hiders, the FHD is cut from premium materials and finished with a heat-treat process that enhances surface hardness and corrosion resistance. It's built to withstand harsh use, extreme heat, and repeated suppressor attachment. Thanks to its Rearden R-series mount interface, this flash hider doubles as a suppressor host, offering rock-solid lock-up when paired with Rearden's muzzle device-compatible adapters. The result: reduced flash, full suppressor integration, and bombproof durability in a compact, professional-grade unit. Specifications: Manufacturer: Rearden Manufacturing Model: FHD Thread Pitch: 1/2x28 TPI Material: 17-4PH Stainless Steel Finish: Heat Treated / Blackened Suppressor Mount Interface: Rearden R Series Device Type: Flash Hider Length: Approx. 2.55" Weight: Approx. 2.9 oz Caliber Compatibility: 5.56mm / .223 Made In: USA