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 Picatinny Rail Covers, 12 Pack, NEW
Picatinny Rail Covers, 12 Pack, NEW

AR15/M16/SIG556 Eclipse Flash Hider, 5.56, US Made 922(R) Part

Manticore Arms Eclipse flash hider for the AR15/M16, TAVOR & SIG 556, .223/5.56X45 NATO, NEW, US Manufactured 922(R) Compliance part.

Sold individually.
1/2x28 TPI threaded, standard for the AR15/M16, TAVOR & SIG556.
Designed specifically for .223 caliber (and 5.56 too, of course...) weapons with a 1/2x28 tpi muzzle thread the MA-6450 Eclipse Flash Hider does not just reduce flash, but rather eats it up entirely leaving nothing but inky, black night when shooting.

Both in internal and independent testing, Manticore and others have not found a single brand or bullet weight of ammuntion that produces any sort of flash with the Eclipse Premium Flash Hider.
55 grain XM193, 75 grain Privi Partizan, even your inexpensive 55 grain Wolf Military Classic- the only way you know the rifle was fired is from the noise!

Manufactured from 8620 steel, heat treated, and then coated in black oxide to create the most durable part possible, the Eclipse is the most effective flash hider currently available for the AR-15 and M-16, SIG 556, TAVOR or any other weapon that fires the .223 round.

The Eclipse Flash Hider is marked "MA" and "223" to denote that it is made right here in the USA by Manticore Arms for .223 caliber weapons and comes with a crush washer.
It is 2.25" long, weighs 3.6 ounces, and is a standard 22mm diameter allowing for the use of most standard NATO muzzle accessories.

PLEASE NOTE: The MA-6450 Eclipse is only meant for projectiles .223" (5.56mm) in size or smaller.
DO NOT mount this on any weapon firing a larger projectile, as the projectile will not clear the bore of the muzzle device!
Some barrels are threaded for 1/2x28 but fire a larger projectile, ALWAYS check what the barrel fires before installation.
Additional models of Eclipse will be available in the near future to accommodate other calibers and thread patterns.



Manticore Arms was formed in 2010 when it was recognized there was a need in the firearms community for an improved charging handle for the Steyr AUG and MSAR series of rifles.
We are a design firm that takes ideas for firearms related products from concept to market.


Maticore Arms develops original, forward thinking products for the firearms community.
Every product we develop must adhere to three principles for it to be considered in our product line:


Every product is initally conceived to either fill a need where a product does not already exist, or to improve the function of an existing product.
Multiple initial concepts are developed on paper and then brought to life in model and prototype form.
Independent reviewers are allowed to test our prototypes and give feedback, and the products are refined.
Only after we are satisfied that the product offers something not available or that it improves on the function of an existing product will it move forward into production.


It is easy to make a product that works, but even the most spartan shooter wants his rifle to look good.
All products are designed to have visual appeal which often has its own synergy with function- smooth lines and refined design not only make a product have visual appeal, but also can improve ergonomics and make a product that will not snag or hang up on your gear.
Ultimately, the appearance of our products reflects our design sensibilites, and if your rifle looks good, we look good.


It is easy to design a product that works and that looks good, but at the end of the day, if it is not affordable, no one is going to use it.
When developing products we ask independent reviewers what they think the market price of our products should be, and almost always our price point comes in below what they expect.
Every product is analyzed from a manufacturing standpoint to improve the efficiency of production.
In the end, we want you to get more performance for less cost.


Our mission is to develop original, durable, functional, appealing, affordable products that meet your needs in a way you never have thought of, all while providing excellent customer service.

-Sven Jonsson, Owner Manticore Arms, Inc.

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