The JK Armament HD War Eagle Comp / Flash Hider in 5/8×24 is the .30 caliber (7.62mm) version of JK’s triple-use muzzle device (brand part no. JK-MD-HDCF24). It works as a compensator, a flash hider and a quick-attach mount for JK suppressors, all in a body that measures 1.9 inches overall. The design is symmetrical, so there is no timing to worry about and installation goes quickly with a wrench on the flats at the front and rear. It is machined from heat-treated 17-4 stainless steel with a black nitrided finish, built for long service on a rifle with or without a suppressor on the end. For a shooter running a JK Quick Attach Taper Mount suppressor on a 5/8×24 barrel, it is the muzzle device that ties the setup together.

Key Specifications

• The thread is 5/8×24, the pitch this .30 caliber (7.62mm) version is cut for, so match it to your barrel before ordering.
• It works as a compensator, flash hider and quick-attach suppressor mount, which replaces three separate parts with one device.
• Overall length is 1.9 inches, a compact size for a muzzle device that does three jobs.
• The material is heat-treated 17-4 stainless steel, chosen to hold up to repeated blast and suppressor use.
• The coating is black nitride, a hard surface treatment that resists wear and corrosion.
• The recommended installation torque is 35 ft-lbs, a figure to follow for a secure and repeatable fit.
• Wrench flats are machined front and rear, which makes installation and removal straightforward.

Frequently Asked Questions

Which barrel thread does this War Eagle use? This version is threaded 5/8×24 and is the .30 caliber (7.62mm) option. JK also lists the HD War Eagle in 1/2×28 for 5.56mm (.22 cal), 1/2×28 for 9mm and M14x1 left-hand for .30 cal, so choose the one that matches your muzzle thread.

Does the War Eagle need to be timed? No. The symmetrical design means there is nothing to time, which makes installation fast and easy.

Can I run it with a suppressor? Yes. JK designed it as the hub for a suppressor fitted with its Quick Attach Taper Mount, and it also acts as an initial blast baffle inside the suppressor, taking some of the abuse that would otherwise hit the first baffle.

Buy the JK Armament HD War Eagle Comp / Flash Hider, 5/8×24, .30 Cal

Anyone pairing a JK suppressor with a .30 caliber rifle gets a lot out of a single muzzle device that handles recoil, flash and mounting. Order it from our Lubbock, Texas gun shop for fast direct shipping, and see more Class 3 parts and accessories.