The Rearden 10001 FHD 0.375 1/2-28 Square Plan B flash hider is a precision-machined muzzle device built for shooters who want dependable performance with Plan B–style suppressor mounts. Crafted from 17-4 stainless steel and finished in black nitride, it offers a durable, corrosion-resistant surface while its square shoulder design and 1/2x28 threads provide a solid, repeatable interface on properly threaded barrels.

This model is compatible with Atlas, Atlas XL, and Plan B systems, making it a versatile choice for modern AR-15 builds and other .375 bore platforms using the same thread pattern. Ideal for range use, training, and general-purpose shooting, it is designed to be installed with proper torque, Rockset, and alignment rod checks for safe, consistent operation. Rearden Manufacturing is known for careful machining and thoughtful design, giving shooters confidence in every shot.

Key Features:

• Manufacturer: Rearden
• Model: FHD
• Caliber: .375
• Type: Flash hider
• Thread Pattern: 1/2x28
• Shoulder Type: Square shoulder
• Material: 17-4 stainless steel
• Finish: Black nitride
• Compatibility: Atlas, Atlas XL, Plan B
• Weight: 0.2050 lbs