My Account (Sign in)
Your basket is empty.
0
Basket
Help and contact
Free standard delivery over £199
100-day return policy
Brownells UK - World's Largest Supplier of Gun Parts, Gunsmith Tools & Shooting Accessories United Kingdom
My Account (Sign in)
Shopping list
(0)
Basket
Newsletter
Sale
Home Rifle Parts Receiver Parts Receivers Upper Receivers CROSS MACHINE TOOL CO. AR-15/M16 458 SOCOM BILLET UPPER RECEIVER

CROSS MACHINE TOOL CO.
AR-15/M16 458 SOCOM BILLET UPPER RECEIVER

(2)
040232173721 100015679
Enlarged Ejection Port Accommodates .458 SOCOM
Stripped billet upper drops onto standard lower and features expanded ejection port that accommodates .458 SOCOM and other big-bore AR-15 calibers. Integral Picatinny rail provides mounting space, and slick-side design does not require forward assist or ejection port cover, simplifying the build. Has M4 feed ramps, and accepts standard bolt carrier, charging handle and barrel nut, sold separately.

SPECS: T6 7075 billet aluminum, hardcoat anodized, matte black finish.

More...
177.5 177.5 1 GBP
Product no.: 100015679
CROSS MACHINE TOOL CO. AR-15/M16 BILLET UPPER RECEIVER, .458 SOCOM
Mfr Part: UPUR3 040232173721 Stripped billet upper drops onto standard lower and features expanded ejection port that accommodates .458 SOCOM and other big-bore AR-15 calibers. Integral Picatinny rail provides mounting space, and slick-side design does not require forward assist or ejection port cover, simplifying the build. Has M4 feed ramps, and accepts standard bolt carrier, charging handle and barrel nut, sold separately.
177.5 GBP 0 £177.50 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 458 SOCOM Color: Black Finish: Anodized Make: AR-15 Style: Stripped
Ask question

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The upper receiver is made from T6 7075 billet aluminum with a hardcoat anodized matte black finish, designed to fit onto standard AR-15 lowers.
  2. It features an expanded ejection port suitable for .458 SOCOM and other big-bore AR-15 calibers, and includes an integral Picatinny rail.
  3. The design is stripped, without a forward assist or ejection port cover, and is compatible with standard bolt carrier, charging handle, and barrel nut.

Attributes

Cartridge: 458 SOCOM Colour: Black Finish: Anodized Make: AR-15 Style: Stripped Delivery weight: 0.29kg

Item details

Made in USA
US export classification: I(g)



Upgrade your AR-15 with the .458 SOCOM Billet Upper Receiver by CROSS MACHINE TOOL CO. 🛠️ Stripped, anodized, and ready for big-bore calibers. Shop now! ⚙️🔫

Enlarged Ejection Port Accommodates .458 SOCOM
Stripped billet upper drops onto standard lower and features expanded ejection port that accommodates .458 SOCOM and other big-bore AR-15 calibers. Integral Picatinny rail provides mounting space, and slick-side design does not require forward assist or ejection port cover, simplifying the build. Has M4 feed ramps, and accepts standard bolt carrier, charging handle and barrel nut, sold separately.

SPECS: T6 7075 billet aluminum, hardcoat anodized, matte black finish.

More...
🔫 Upgrade your shooting experience with the ERGO GRIPS SureGrip Tactical Deluxe Grip for AR-15/AR-10! Superior grip, perfect for large hands. Get yours now! 🎯
ERGO GRIPS SUREGRIP TACTICAL DELUXE GRIP POLYMER BLACK
AR-15/AR-10 ERGO TACTICAL DELUXE GRIP- SUREGRIP®
ERGO GRIPS
Reordered
£49.90 * £49.90 - £54.90*
Pistol Grips
5
🔥 Enhance your AR-15 with Brownells M16 Bolt Carrier Group! Precision-crafted in 5.56 NATO, black nitride finish for reliability. Learn more & upgrade now! ✅
BROWNELLS M16 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP
M16 5.56 BOLT CARRIER GROUP NITRIDE MP
BROWNELLS
Not available - Is a 'Call to order' product.
£131.60 *
Bolt Carrier Groups
4.9
🔥 Upgrade your AR-15 with the 10.5" Midwest Industries Combat M-LOK Handguard! Aluminum, free-float design for optimal customization. Shop now and enhance your rifle! 🎯
MIDWEST INDUSTRIES COMBAT HANDGUARD M-LOK ALUMINUM 10.5" BLACK
AR-15 COMBAT HANDGUARDS FREE FLOAT M-LOK
MIDWEST INDUSTRIES
In stock
£234.90 * £179.90 - £354.90*
Handguards & Rails
5
🎯 Upgrade your rifle with the Geissele G2S Two-Stage Trigger! Precision and reliability at an unbeatable price. Perfect for AR-15/M16. Shop now! 🔫
GEISSELE AUTOMATICS GEISSELE G2S TWO-STAGE TRIGGER
AR-15/M16 TWO-STAGE TRIGGERS
GEISSELE AUTOMATICS
In stock
£209.90 *
Triggers
4.5
🔥 Upgrade your AR-15 with the MAGPUL UBR 2.0 Collapsible Stock in FDE! Strong as fixed stock with 8 positions for comfort. Shop now for stability & style! 🎯
MAGPUL AR-15 UBR 2.0 COLLAPSIBLE STOCK COLLAPSIBLE A5 LENGTH FDE
AR-15 UBR 2.0 COLLAPSIBLE STOCK COLLAPSIBLE A5 LENGTH
MAGPUL
In stock
£249.90 *
Buttstocks
5
Why order from us?
Unrivaled Product Selection

You want it? We got it!

Expert Customer Advice

Via Phone, Chat & Email

US Goods to your doorstep

No customs, no problems

100 days Returns

Shop with a peace of mind

Offers, Promotions & Exclusive Products

Through our weekly newsletter

Shamelessly Honest

We encourage critical product review

Fair Pricing

We pursue a sustainable pricing policy

We won't leave you stranded

Our entire team is made up of passionate gun enthusiasts

 

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.

© 2024 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical view Mobile view