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Questions & Answers
can this hide flash also? Manufacturer Answer

The flash you experience can be GREATLY adjusted by altering your barrel length and ammunition. As a rule of thumb, a shorter barrel such as a 10.5" will have much more flash than a standard 16" barrel (which is the length we recommend running the NERO 556 on). As for ammunition, it depends on how hot the ammo is as well as the flash retardant in the powder formula. Different brands have differing amounts (and this could vary greatly). We do not market the NERO 556 as a flash hider but you can take steps to reduce any flash you may experience. Using a higher-end .223 Remington duty load designed for LE for example (something like Hornady TAP) can greatly reduce any flash experienced if any on a 16" patrol carbine.

by Walker Defense, Manufacturer, December 21, 2022
Will this work for a AR pistol build with a 10.5 to 12.5” barrel? Expert Answer

The Walker Defense Research Nero 556 Hybrid Muzzle Brake and Compensator can be used on an AR Pistol if it is chambered in .223/5.56 and has a barrel threaded for 1/2x28.

by Hunter, Gear Expert, August 15, 2022
Customer Reviews
Helpful Positive Review
I recently purchased a Springfield Hellion and wanted a brake that looked as sleek and futuristic as the rifle itself, while also helping to control the recoil of the rifle. The Nero does all that and definitely caught the attention of other shooters...
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2/4 found this helpful
Helpful Positive Review
I now own 3 by Mike, Verified Owner, April 18, 2022
The muzzle brake is by far one of the best products I have ever purchased. Walker Defefense stands behind their products; and that is something I look for as a consumer. I had an what I thought was a big issue with my order; and the customer support ...
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6/6 found this helpful
Helpful Positive Review
I have 3 of them, just ordered 2 more. If you own a gun you're actually going to shoot, the Nero is worth every penny. I just put one on the front of a BCM Recce 16 and that thing shoots flatter than a Laugo Alien in a bench vise. The sight doesn't e...
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5/5 found this helpful
Helpful Positive Review
As a brake, recoil (light as it is already) is minimized. Side-concussion is more than a flash hider, but less than a chamber brake. As a compensator, muzzle rise is non-existent. F1 cars wish they had this much downforce. Slow fire, you can stay in...
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32/35 found this helpful
Helpful Positive Review
Great product! by Richard, January 15, 2025
I have several AR15s with a variety of muzzle devices of many types including the VG6 hands down this one outperforms them all. Running it on an almost all carbon fiber (barrel, stock, buffer, hand guard, grip, and skeletonized lower) super lightwe...
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2/2 found this helpful
Helpful Positive Review
Excellent product by JR, August 15, 2020
This works way better than I expected, it is a little heavy but it is worth the added weight, it also kind of hurts to use, but it literally has no recoil when firing no matter how fast, I highly recommend this product.
9/9 found this helpful
Read All 17 Reviews
Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.
Color:
Black
Caliber:
.223 Remington, .224 Valkyrie, 5.56x45mm NATO
Finish:
Ionbond (DLC)
Fabric/Material:
Inconel
Threads per Inch:
1/2x28
Gun Make:
AR Platform, Israel Weapon Industries (IWI)
Gun Model:
AR-15, IWI Tavor
Length:
2.6 in
Weight:
3.8 oz

Code: 3TI-BMB-WDRMUZB-NERO556

MPN: NERO556

UPC: 3117434

10%
Product Discount
List: $219.99Save 23%
$169.99

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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Walker Defense Research Nero 556 Hybrid Muzzle Brake and Compensator

Walker Defense Research (WDR) set off to create the ideal compensating muzzle brake by starting from a blank canvas. Their goal was to completely transform the recoil impulse of the AR-15 into a simple, soft rearward push with zero muzzle climb and manageable concussion to still be viable for tactical applications.image

To do this, WDR had to reject all design constraints and engineer the NERO 556 from the ground up using computational fluid dynamics and direct metal laser sintering (DMLS also referred to as 3D printed metal). Leveraging these cutting-edge technologies also allowed them to manufacture a device using Inconel, a nickel-chromium superalloy more at home in rockets and jet engines to produce a muzzle brake that had no peer. Whether combat or competition, the NERO 556 is designed to give you the ideal level of controllability and speed.

Specifications for Walker Defense Research Nero 556 Hybrid Muzzle Brake and Compensator:

Manufacturer: Walker Defense Research
Color: Black
Caliber: .224 Valkyrie, 5.56x45mm NATO, .223 Remington
Finish: Ionbond (DLC)
Fabric/Material: Inconel
Threads per Inch: 1/2x28
Gun Make: AR Platform, Israel Weapon Industries (IWI)
Gun Model: IWI Tavor, AR-15
Length: 2.6 in
Weight: 3.8 oz
Country of Origin: USA

Features of Walker Defense Research AR-15 NERO Hybrid Muzzle Brake & Compensator

  • Eliminate Muzzle Climb for an Exceptionally Flat-shooting Experience
  • Substantially Reduce Recoil
  • Manage Felt Concussion Relative to Traditional Muzzle Brakes
  • Pre-drilled hole for pinning and welding to a 14.5in barrel
  • Serialized for Quality Control

Package Contents:

  • Walker Defense Research AR-15 NERO Hybrid Muzzle Brake & Compensator
  • 1 crush washer included

Walker Defense Research Nero 556 Hybrid Muzzle Brake and Compensator Orderable Models

List of Orderable Models

  • Walker Defense Research Nero 556 Hybrid Muzzle Brake and Compensator, 1/2x28 Threads, NERO556 , MPN: NERO556 , UPC: 3117434 , Code: 3TI-BMB-WDRMUZB-NERO556
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