JK Armament 155 War Eagle 9mm Compensator and Flash Hider, 1/2x28, Black The JK Armament 155 War Eagle 9mm compensator and flash hider combines recoil compensation, flash reduction, and a suppressor attachment point in one component. The 1/2x28 version is made for a barrel with the matching thread pattern and suitable bore clearance, with a black finish for a restrained appearance. Choose the 155 War Eagle 9mm Compensator and Flash Hider, 1/2x28, Black at BattleHawk Armory. Purpose-Built Muzzle Function The symmetrical port layout supports compensation without rotational timing. The War Eagle remains useful as a standalone muzzle device when a suppressor is removed. Taper Interface for Suppressor Attachment The War Eagle works with compatible JK quick-attach taper mounts. A matching suppressor mount engages the muzzle device, while the taper provides a gas-sealing seating surface. When used with a compatible suppressor, the muzzle device also serves as an initial blast baffle. Stainless Steel With a Nitride Finish Heat-treated 17-4 stainless steel provides strength at the muzzle, and the black nitride finish adds a durable surface treatment. Front and rear wrench flats provide defined tool engagement. Those details are useful for a part that may remain exposed between suppressed range sessions. Caliber and Thread Fitment The muzzle device has a 9mm bore and 1/2x28 barrel threads. Both specifications must suit the firearm. The thread pattern identifies the barrel connection; it is separate from the taper-mount interface used by the suppressor. Confirm the complete suppressor system's caliber rating independently. Product Specifications Manufacturer: JK Armament Model: 155 War Eagle Bore: 9mm Barrel threads: 1/2x28 Construction: Heat-treated 17-4 stainless steel Finish: Black nitride Mounting interface: Compatible JK quick-attach taper mounts Port orientation: Symmetrical; no timing required Frequently Asked Questions Can it be used without a suppressor? Yes. The War Eagle can remain on a compatible barrel as a standalone muzzle device. Does it attach directly to a bare HUB suppressor? No. A compatible taper mount in the suppressor is needed to engage the muzzle device. HUB threads alone do not provide that connection. Is the thread pattern enough to establish fitment? No. The firearm must also have suitable bore clearance for the 9mm muzzle device, an appropriate muzzle shoulder, and compatibility with the chosen suppressor system. Shop the 155 War Eagle 9mm Compensator and Flash Hider, 1/2x28, Black at BattleHawk Armory.