Your basket is empty.

Basket

Help and contact

Free standard delivery over £199

100-day return policy

Newsletter

Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

The CORE Rifle Systems AR-15 Barrel Nut is crafted from stress-relieved steel for unmatched durability, ensuring it resists fatigue and distortion for years of reliable use.

CORE RIFLE SYSTEMS AR-15 BARREL NUT STEEL BLACK

700220496415 100012441

Top takeaways

The AR-15 barrel nut is crafted from specially drawn steel and is stress relieved in a controlled furnace for high resistance to metal fatigue and distortion.
Designed to fit all standard AR-15/M16 upper receivers and barrels, the barrel nut maintains its shape, ensuring durability and longevity.
Manufactured by Core Rifle Systems, the barrel nut features a phosphate finish in matte black, complementing the AR-15's aesthetics.

Attributes

Colour:
```
Black
```
Material:
```
Steel
```
Weapon type:
```
AR-15
```
Delivery weight: 0.045kg
Shipping height: 10mm
Shipping width: 76mm
Shipping length: 76mm
UPC: 700220496415

Item details

Made in USA

Specifications:
Color: Black
Make: AR-15
Material: Steel

0 0 1 GBP

Not available.

Product no.: 100012441

Mfr. No.: 99446

Notify on availability 23.9 GBP

0 0 1 GBP

Description Specification Customers reviews Accessories

CORE RIFLE SYSTEMS AR-15 BARREL NUT STEEL BLACK

Notify on availability

Description:

Upgrade your AR-15 with a premium Barrel Nut!

The CORE RIFLE SYSTEMS AR-15 Barrel Nut is engineered for durability and performance. Specially made from high-quality steel, this barrel nut is designed to resist fatigue and distortion, ensuring a reliable and long-lasting fit for your firearm.

Product Features:

Material: Steel drawn through a special die
Stress Relief: Processed in a precisely controlled furnace
Resistance: High resistance to metal fatigue and distortion
Durability: Won’t warp; stands up to years of hard use
Compatibility: Fits all standard AR-15/M16 upper receivers and barrels

Specifications:

Finish: Phosphate finish, matte black

Enhance your shooting experience with the CORE RIFLE SYSTEMS AR-15 Barrel Nut – a must-have for any serious firearms enthusiast!

Top takeaways

The AR-15 barrel nut is crafted from specially drawn steel and is stress relieved in a controlled furnace for high resistance to metal fatigue and distortion.
Designed to fit all standard AR-15/M16 upper receivers and barrels, the barrel nut maintains its shape, ensuring durability and longevity.
Manufactured by Core Rifle Systems, the barrel nut features a phosphate finish in matte black, complementing the AR-15's aesthetics.

Attributes

Colour:
```
Black
```
Material:
```
Steel
```
Weapon type:
```
AR-15
```
Delivery weight: 0.045kg
Shipping height: 10mm
Shipping width: 76mm
Shipping length: 76mm
UPC: 700220496415

Item details

Made in USA

Customers reviews

Customer ratings (5)

2.4 / 5

Not recommended

Will not buy again 01/12/2015

The folks who make this barrel nut need to realize that now a days most AR15 owners use a Rail. This Barrel nut will not work with KAC RAS because the underneath where the RAS tensioner locks in it doesn't have any space to fit. So if you have intentions on using a RAS of any kind don't but it. I'm in to 5 of these and now stuck with them. Do Not Purchase till they get their machining right on this...

Recommended

Great Nut - Doesn't fit Troy Alpha 02/03/2015

I ordered this in a pinch because the barrel nut I normally use was out of stock. The finish was fantastic, threads very clean and well cut, and initially I considered making THIS my standard barrel nut for future builds.

Unfortunately, the Core nut is a bit oversized, as such, it doesn't fit into the machined grooves of the Troy Alpha Rails. I found out just how tough their finish and materials are by filing/sanding/polishing to fit this barrel nut into the Troy handguards - I was equally frustrated and impressed, the finish was very durable. I would venture that there are several models of handguard that rely upon a standard barrel nut that this would not work for, so be aware of that before buying.

Overall, very good barrel nut - just won't work for my application.

Definitely recommended

It is stressproof 03/12/2013

I don't have any experience with this product before, so I figured I'll give it a try. I am currently building an AR upper. I have used other barrel nut by other manufacturer and this product rocks. It has the same dimension as other barrel nut on the market but what sets it apart from the other is how tough this one is. I have place others and upon torqueing to about 50ftlbs, the teeth will break. But not this one. So far this nut can handle it. I have not tried torqueing it to maximum torque as I had mine torque to about 40ftlbs and my gas tube is in perfect alignment. Mission accomplished. What else can I say. BTW this is compatible with Samson's Evolution handguard as well. Heed their warning, this is not compatible with Troy handrails. Great product. Kudos to Brownells fast shipping too.

Customers also bought

BROWNELLS

SLIP RING ALUMINUM BLACK

Handguard Rings

In stock

£24.90

Build your AR-15 with this high-quality 5.56 NATO Lower Parts Kit, featuring durable Mil-Spec components for easy installation and reliable performance.

BROWNELLS

AR-15 LOWER PARTS KIT 5.56 NO FIRE CONTROL GRP/PISTOL GRIP

2.9

Not available

BROWNELLS

BRN AR-15 FORWARD ASSIST ASSEMBLY

Forward Assist Parts

Backorderable

£26.90

-9 %

ZRO DELTA

AR-15 FIRE CONTROL GROUP LASER CUT DISCONNECTOR

Triggers

3.5

In stock

£54.90

£49.90

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation

Product Categories

Ordering

Customer Service

Connect

Secure payment methods

Trade Associations

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.