My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter 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

Rifle Parts Receiver Parts Buffer Tube Parts Buffer Tube Hardware TANGO UNIFORM ECHO ZULU CASTLE NUT, 6 PIECE BULK PACK Support

The Echo Zulu Castle Nut offers fast, safe staking with premium 4140 PH alloy steel, diamond hard black nitride finish, and precision machining for reliability.

TANGO UNIFORM ECHO ZULU CASTLE NUT, 6 PIECE BULK PACK

197644954728 430104728
Variations
Filters:
Variations:

Variations:

The Echo Zulu Castle Nut offers fast, safe staking with premium 4140 PH alloy steel, diamond hard black nitride finish, and precision machining for reliability.
ECHO ZULU CASTLE NUT - ECHO ZULU CASTLE NUT, 6 PIECE BULK PACK
Not available
Make: AR-15 Product no.: 430104728
Not available
134.9 GBP 0 £134.90 *
The Echo Zulu Castle Nut offers faster, safer staking with premium 4140 PH alloy steel, eight alignment notches, and compatibility with Echo Zulu tools.
ECHO ZULU CASTLE NUT
Not available
Make: AR-15 Product no.: 430104727
Not available
25.9 GBP 0 £25.90 *
0 0 2 GBP

Not available.

Product no.: 430104728

Mfr. No.: ECHO ZULU CASTL

Notify on availability 134.9 GBP
0 0 2 GBP
Description Specification Customers reviews Accessories

TANGO UNIFORM ECHO ZULU CASTLE NUT, 6 PIECE BULK PACK

Notify on availability

Description:

Enhance your AR's performance with the Echo Zulu Castle Nut!

The Echo Zulu Castle Nut from Tango Uniform allows you to stake your AR's castle nuts faster, safer, and more consistently. This innovative system is designed for both ease of use and durability.

Product Features:

  • Premium Material: Made from high-quality 4140 PH alloy steel.
  • Long-lasting Finish: Coated in a diamond hard black nitride for enhanced durability.
  • Precision Engineering: Machined on a modern Swiss CNC lathe to meet or exceed mil-spec TDP tolerances, including true class 3 threads.
  • Easy Alignment: Features eight co-linear wrench and staking notches for improved visual alignment.
  • Versatile Staking: Multiple staking locations accommodate even the largest end plates.
  • Compatibility: Works seamlessly with the bi-directional staking guide from the Echo Zulu Starter Kit or the Echo Zulu armorer’s wrench.

The unique design of the EZ castle nut ensures strong and consistent staking while minimizing the risk of damaging other components. Upgrade your gunsmithing tools today with the Echo Zulu Castle Nut and experience the difference!

Available in a 6 Piece Bulk Pack

Perfect for those who require multiple nuts for various projects or for professional gunsmiths looking to stock up.



Top takeaways

  1. The Echo Zulu Castle Nut is made from high-quality 4140 PH alloy steel with a black nitride finish for durability.
  2. It is precision machined to meet or exceed mil-spec tolerances, featuring true class 3 threads and eight staking notches.
  3. Designed for easy and consistent staking, it can be used with the Echo Zulu Starter Kit or armorer’s wrench, minimizing risk to other components.

Attributes

  • Weapon type: 
    AR-15
  • Delivery weight: 0.141kg
  • Shipping height: 3mm
  • Shipping width: 76mm
  • Shipping length: 171mm
  • UPC: 197644954728

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

The Echo Zulu Castle Nut offers fast, safe staking with premium 4140 PH alloy steel, diamond hard black nitride finish, and precision machining for reliability.
ECHO ZULU CASTLE NUT - ECHO ZULU CASTLE NUT, 6 PIECE BULK PACK
Not available
Make: AR-15 Product no.: 430104728
Not available
134.9 GBP 0 £134.90 *
The Echo Zulu Castle Nut offers faster, safer staking with premium 4140 PH alloy steel, eight alignment notches, and compatibility with Echo Zulu tools.
ECHO ZULU CASTLE NUT
Not available
Make: AR-15 Product no.: 430104727
Not available
25.9 GBP 0 £25.90 *

Customers also bought

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

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.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top