The Manticore Arms Eclipse Flash Hider (brand part no. MA-6450) is built specifically for .223 Remington/5.56x45mm NATO rifles with a 1/2-28 tpi muzzle thread, and it’s designed to eliminate flash rather than just reduce it. In both internal and independent testing across a wide range of loads and bullet weights, Manticore Arms found no visible flash from the Eclipse, only the report of the shot itself. It’s manufactured from 8620 steel, heat treated, and finished in black oxide for a hard-wearing, corrosion-resistant exterior. Marked MA and 223 to confirm it’s made in the USA specifically for .223-class weapons, the Eclipse ships with a crush washer and uses a standard 22mm diameter compatible with most NATO muzzle accessories. It is not intended for any projectile larger than .223 inch (5.56mm); always confirm what a barrel actually fires before installing a 1/2-28-threaded device, since some barrels use that thread pattern but fire larger projectiles.

Key Specifications

• Built for .223 Remington/5.56x45mm NATO rifles.
• Threaded 1/2-28 tpi.
• Designed to eliminate flash rather than just reduce it.
• Verified flash-free in internal and independent testing across multiple loads.
• Manufactured from 8620 steel, heat treated for durability.
• Finished in black oxide for corrosion resistance.
• Measures 2.25 inches long and weighs 3.6 ounces.
• Uses a standard 22mm diameter, compatible with most NATO muzzle accessories.
• Includes a crush washer and is marked MA and 223, made in the USA.

Frequently Asked Questions

Will this fit a larger caliber? No, it’s built only for .223 inch (5.56mm) projectiles or smaller; do not install it on a barrel that fires a larger projectile even if the thread pattern matches.

Does it come with a crush washer? Yes, a crush washer is included.

What’s it made from? 8620 steel, heat treated and finished in black oxide.

Buy the Manticore Arms Eclipse Flash Hider – .223/5.56, 1/2×28

Shoot in the dark without giving away your position. Order the Manticore Arms Eclipse from our gun accessories selection at our Lubbock, Texas gun shop, and our team will have it ready as soon as it’s available to ship.