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

Experience the classic M4-style with the Stag Arms Stag-15 M4 Upper Receiver, featuring a 16-inch chrome-lined barrel, A2 flash hider, and GI-spec reliability.

STAG ARMS STAG 15 M4 PHOSPHATE UPPER

810052407548 100701033

Filters:

Variations

Filters:

Variations:

Experience the classic M4-style with the Stag Arms Stag-15 M4 Upper Receiver, featuring a 16-inch chrome-lined barrel, A2 flash hider, and GI-spec reliability.

STAG 15 5.56 M4 UPPER RECEIVERS - STAG 15 M4 PHOSPHATE UPPER

689.9 GBP 0 £689.90 *

Not available

Cartridge: 5.56 mm NATO Color: Black Contour: Medium Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Complete Twist: 1-7 Product no.: 100701033

Not available

689.9 GBP 0 £689.90 *

Experience military-grade performance with the STAG 15 M4 Upper Receiver, featuring a 16" chrome-lined barrel, A2 flash hider, and thermoplastic handguard.

STAG 15 5.56 M4 UPPER RECEIVERS - STAG 15L LEFT HAND M4 PHOSPHATE UPPER

769.9 GBP 0 £769.90 *

Not available

Cartridge: 5.56 mm NATO Color: Black Contour: Medium Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Complete Twist: 1-7 Product no.: 100701034

Not available

769.9 GBP 0 £769.90 *

689.9 769.9 2 GBP

689.9 GBP £689.90

Prices inclusive of duty & VAT.

Product no.: 100701033

Mfr. No.: STAG15101111

810052407548 No matter how many options emerge in the massive AR-15 market, there's always going to be a demand for that classic, M4-style configuration that's been proven on battlefields across the world. Now, you can have an AR-15 that's built to the same standards and with the same features as the M4 Carbine that's served with our military for decades. This is the Stag Arms Stag-15 M4 Upper Receiver. True to form, the Stag Arms Stag-15 M4 Upper Receiver is everything you're looking for in a GI-spec system, complete with the 5.56-NATO-Chambered barrel measuring 16-inch long and complete with a 1:7-inch twist rate. The barrel and chamber are chrome-lined for corrosion resistance, and the muzzle end of the upper is crowned with an A2 birdcage flash hider. Surrounding the barrel assembly is a thermoplastic handguard that completes the look of this classic platform. All you need to do to complete this Stag Arms Stag-15 M4 Upper Receiver is add a bolt-carrier group and charging handle that adheres to mil-spec designs, which certainly won't be hard, and you'll have a close match to the service rifle we know and love.

Not available

Not available.

100-Day Return Policy

No charges until we ship

No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.

Wish List Ask question

order by phone

689.9 769.9 2 GBP

Description Specification Customers reviews Accessories

STAG ARMS STAG 15 M4 PHOSPHATE UPPER

689.9 GBP £689.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Requires order by phone

Description:

A Military-Style M4 Upper Receiver for Your Carbine-Style Lower

No matter how many options emerge in the massive AR-15 market, there's always going to be a demand for that classic, M4-style configuration that's been proven on battlefields across the world. Now, you can have an AR-15 that's built to the same standards and with the same features as the M4 Carbine that's served with our military for decades.

Introducing the Stag Arms Stag-15 M4 Upper Receiver

True to form, the Stag Arms Stag-15 M4 Upper Receiver is everything you're looking for in a GI-spec system, complete with:

5.56-NATO-Chambered barrel measuring 16 inches long
1:7-inch twist rate
Chrome-lined barrel and chamber for corrosion resistance
A2 birdcage flash hider at the muzzle end

Surrounding the barrel assembly is a thermoplastic handguard that completes the look of this classic platform. All you need to do to complete this Stag Arms Stag-15 M4 Upper Receiver is add a bolt-carrier group and charging handle that adheres to mil-spec designs, which certainly won't be hard, and you'll have a close match to the service rifle we know and love.

Restrictions

Is a 'Call to order' product.

Top takeaways

The Stag Arms Stag-15 M4 Upper Receiver is designed to meet GI specifications with a classic M4-style layout, proven in military service.
Features a 16-inch, 5.56-NATO chambered barrel with a 1:7-inch twist rate, chrome-lined for corrosion resistance, and an A2 birdcage flash hider.
Requires the addition of a mil-spec bolt-carrier group and charging handle to complete the assembly of this AR-15 upper receiver.

Attributes

Cartridge:
```
5.56 mm NATO
```
Colour:
```
Black
```
Contour:
```
Medium
```
Finish:
```
Anodized
```
Length:
```
16''
```
Muzzle:
```
1/2-28
```
Style:
```
Complete
```
Twist:
```
1-7
```
Weapon type:
```
AR-15
```
Delivery weight: 2.193kg
Shipping height: 102mm
Shipping width: 146mm
Shipping length: 765mm
UPC: 810052407548

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (0)

0 / 5

Variations:

STAG 15 5.56 M4 UPPER RECEIVERS - STAG 15 M4 PHOSPHATE UPPER

689.9 GBP 0 £689.90 *

Not available

Cartridge: 5.56 mm NATO Color: Black Contour: Medium Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Complete Twist: 1-7 Product no.: 100701033

Not available

689.9 GBP 0 £689.90 *

STAG 15 5.56 M4 UPPER RECEIVERS - STAG 15L LEFT HAND M4 PHOSPHATE UPPER

769.9 GBP 0 £769.90 *

Not available

Cartridge: 5.56 mm NATO Color: Black Contour: Medium Finish: Anodized Length: 16'' Make: AR-15 Muzzle: 1/2-28 Style: Complete Twist: 1-7 Product no.: 100701034

Not available

769.9 GBP 0 £769.90 *

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.