Comstock Armory 4-Prong Plan-B Flash Hider, 1/2x28, 5.56, Black Nitride The Comstock Armory 4-Prong Flash Hider combines effective flash suppression with a compact Plan-B-pattern suppressor mounting interface for compatible 5.56/.223 platforms. Featuring standard 1/2-28 threads, high-strength 17-4 PH stainless steel construction and a durable black nitride finish, this muzzle device provides a rugged foundation for compatible suppressor systems while maintaining a streamlined profile. The four-prong design is engineered for strong flash performance, while the mass-shifted tines help prevent the ringing noise associated with many traditional pronged flash hiders. Its rotationally symmetric construction eliminates the need for timing shims, simplifying installation while maintaining a consistent mounting interface. Compatibility with common .900-24 adapters-including the Comstock LPA, Q Plan-B and Rearden Atlas-allows the flash hider to integrate into compatible Plan-B-pattern suppressor setups. Ready to complete your suppressor-mounting setup? Review fitment, confirm compatibility and add the Comstock Armory 4-Prong Flash Hider to your cart at BattleHawk Armory. Flash Suppression and Suppressor Compatibility The four-prong configuration is designed to effectively reduce visible muzzle flash, while the mass-shifted tines help minimize the ringing commonly associated with other pronged flash hiders. At 2.14 inches overall, the device adds approximately 1.5 inches to the muzzle while providing a durable mounting interface for compatible suppressor systems. The 1/2-28 thread pattern is intended for compatible 5.56/.223 applications. The flash hider is compatible with common .900-24 Plan-B-pattern adapters, including the Comstock LPA, Q Plan-B and Rearden Atlas. Key Features and Specifications Model: 4-Prong Flash Hider Primary Thread/Interface: 1/2-28 Caliber/Bore: 5.56/.223 Material: 17-4 PH stainless steel Finish: Black nitride Weight: 2.3 oz Overall Length: 2.14 in Added Muzzle Length: Approx. 1.5 in Installation Interface: 3/4 in wrench flats Mounting Compatibility: Common .900-24 Plan-B-pattern adapters, including Comstock LPA, Q Plan-B and Rearden Atlas Tine Design: Mass shifted to reduce ringing Timing: Rotationally symmetric; does not require shims Pin-and-Weld: Predrilled for compatible 14.5-inch barrel applications 9mm Compatibility: Not compatible Fitment and Installation Guidance The Comstock Armory 4-Prong Flash Hider uses standard 1/2-28 threads for compatible 5.56/.223 barrels. Verify barrel threading, bore compatibility, shoulder dimensions and complete suppressor-system fitment before installation. The device is predrilled for pin-and-weld installation on compatible 14.5-inch barrels. Before permanently attaching any muzzle device, confirm that the resulting barrel length reaches 16 inches. Before attaching a suppressor, always verify bullet stabilization and confirm that the muzzle device, adapter and suppressor are properly aligned. Use an appropriate alignment rod to verify concentricity and follow the current installation instructions supplied by Comstock Armory. Some suppressor manufacturers may limit or exclude warranty coverage when aftermarket mounts or muzzle devices are used. Review the suppressor manufacturer's compatibility and warranty requirements before installation. Build a Compatible Comstock Mounting System The 4-Prong Flash Hider is designed around the Plan-B-pattern suppressor mounting ecosystem and is compatible with common .900-24 adapters, including the Comstock LPA, Q Plan-B and Rearden Atlas. Always verify the barrel thread, muzzle-device bore, adapter specifications and suppressor compatibility as a complete system before installation. Get yours today at BattleHawk Armory. Choose the correct configuration, verify complete system compatibility and purchase the Comstock Armory 4-Prong Flash Hider from a trusted online retailer. Frequently Asked Questions What caliber is this 4-Prong Flash Hider designed for? This model uses 1/2-28 threads and is intended for compatible 5.56/.223 applications. It is not compatible with 9mm firearms. Does the flash hider require timing? No. Its rotationally symmetric design eliminates the need for timing shims. Can this flash hider be used for a pin-and-weld application? Yes. It is predrilled for pin-and-weld installation on compatible 14.5-inch barrels. Before permanently attaching the device, confirm that the resulting barrel length reaches 16 inches. What suppressor adapters are compatible? The flash hider is compatible with common .900-24 Plan-B-pattern adapters, including the Comstock LPA, Q Plan-B and Rearden Atlas. How do I confirm suppressor fitment before use? Verify the barrel thread specification, bore compatibility, adapter interface and suppressor compatibility. Before attaching a suppressor, verify bullet stabilization and use an appropriate alignment rod to confirm the complete system is properly aligned. Use only with a compatible firearm, ammunition and suppressor system. Installation should be performed by a qualified person when the user is not fully familiar with muzzle-device or suppressor-mount installation. Get the Comstock Armory 4-Prong Flash Hider at BattleHawk Armory! Product Identification Manufacturer SKU: 4P-12-22-PWUPC: 850069580001 Shop the Comstock Armory 4P-12-22-PW at BattleHawk Armory.