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 Newsletter
Sale
Home Popular AR-15 Upper Receiver

AR-15 Upper Receiver

AR-15 Upper Receiver Rifle Parts
AR-15 Upper Receiver > Rifle Parts - Preview 0 AR-15 Upper Receiver > Rifle Parts - Preview 1 AR-15 Upper Receiver Handgun Parts
AR-15 Upper Receiver > Handgun Parts - Preview 0 AR-15 Upper Receiver > Handgun Parts - Preview 1 AR-15 Upper Receiver Magazines
AR-15 Upper Receiver > Magazines - Preview 0 AR-15 Upper Receiver > Magazines - Preview 1 AR-15 Upper Receiver Reloading
AR-15 Upper Receiver > Reloading - Preview 0 AR-15 Upper Receiver > Reloading - Preview 1 AR-15 Upper Receiver Shooting Accessories
AR-15 Upper Receiver > Shooting Accessories - Preview 0 AR-15 Upper Receiver > Shooting Accessories - Preview 1 AR-15 Upper Receiver Gunsmith Tools
AR-15 Upper Receiver > Gunsmith Tools - Preview 0 AR-15 Upper Receiver > Gunsmith Tools - Preview 1 AR-15 Upper Receiver Optics & Mounting
AR-15 Upper Receiver > Optics & Mounting - Preview 0 AR-15 Upper Receiver > Optics & Mounting - Preview 1 AR-15 Upper Receiver Gun Cleaning & Chemicals
AR-15 Upper Receiver > Gun Cleaning & Chemicals - Preview 0 AR-15 Upper Receiver > Gun Cleaning & Chemicals - Preview 1

Restrict search
  • Products
  • Bestseller
  • Top rated
  • Sale
  • New
then

AR-15 Upper Receiver - Products

761 - 780 of 812 results
🔧 Build your custom 5.56 AK with the Foxtrot Mike-102 Gen 2 Upper Kit! Lightweight, buffer-less design & innovative features. Get started on your dream build today! 🔫🛠️
FOXTROT MIKE PRODUCTS 9" KIT PISTOL LENGTH W/ BLAST DIVERTER & THRIL RUGGED GRIP
MIKE 102 GEN 2 UPPER KITS
FOXTROT MIKE PRODUCTS
In stock - Is a 'Call to order' product.
£769.90 * £769.90 - £1,119.90*
0
🎯 Upgrade your AR-15 with the BROWNELLS 14.7" Lightweight Barrel in 223 Wylde! Precision & durability for your build. 🛠️ Get started with top-tier performance! 🔫
BROWNELLS 14.7" LIGHTWEIGHT BARREL 1-8 TW MID-LENGTH 1/2-28 BLACK
AR-15 PREMIUM LIGHTWEIGHT BARRELS 223 WYLDE
BROWNELLS
In stock - Is a 'Call to order' product.
£234.90 *
Rifle Barrels
0
🔥 Upgrade your AR-15 with the Brownells 16" Lightweight Dissipator Barrel! Fine-tune your rifle with a 1-8 twist & rifle-length gas system. Shop now for smoother shooting! 🎯
BROWNELLS 16" LIGHTWEIGHT DISSIPATOR BARREL 1-8 RIFLE LENGTH 1/2-28"
AR-15/M16 DISSIPATOR BARREL 16" 5.56 1-8
BROWNELLS
Reordered - Is a 'Call to order' product.
£244.90 * £244.90 - £309.90*
Rifle Barrels
0
🎯 Upgrade your AR .308 with Faxon Firearms' BIG GUNNER 6.5 Creedmoor Barrel! Precision, balance & QPQ Nitride finish for durability. Shop the 18'' rifle-length barrel now! 🔫
FAXON FIREARMS BIG GUNNER BARREL 6.5 CREEDMOOR 18 RIFLE-LENGTH BLACK
AR-15 BIG GUNNER BARRELS 6.5 CREEDMOOR
FAXON FIREARMS
In stock - Is a 'Call to order' product.
£344.90 * £344.90 - £389.90*
Rifle Barrels
4
🎯 Enhance your AR .308 with the Faxon Big Gunner 6.5 Creedmoor 20" barrel! Precision & durability with a matte black finish. Shop now & upgrade your accuracy! 🔫
FAXON FIREARMS BIG GUNNER BARREL 6.5 CREEDMOOR 20 RIFLE-LENGTH BLACK
AR-15 BIG GUNNER BARRELS 6.5 CREEDMOOR
FAXON FIREARMS
Not available - Is a 'Call to order' product.
£389.90 * £344.90 - £389.90*
Rifle Barrels
4
🔥 Upgrade your 9mm carbine with the Foxtrot Mike Products Mike-9 Ultralight Barrel! Precision-engineered for accuracy, available in 7" 1-10 twist. Shop now! ⚡
FOXTROT MIKE PRODUCTS ULTRALIGHT BARREL 9MM 7" 1-10 BLACK
AR-15 MIKE-9 ULTRALIGHT BARREL 9MM
FOXTROT MIKE PRODUCTS
In stock - Is a 'Call to order' product.
£119.90 * £109.90 - £159.90*
Rifle Barrels
0
🔥 Upgrade your 9mm carbine with the Foxtrot Mike Products Mike-9 Ultralight Barrel! 🎯 Precision-engineered for accuracy, available in 5''. Get yours now! ✨
FOXTROT MIKE PRODUCTS ULTRALIGHT BARREL 9MM 5 1-10 BLACK
AR-15 MIKE-9 ULTRALIGHT BARREL 9MM
FOXTROT MIKE PRODUCTS
In stock - Is a 'Call to order' product.
£109.90 * £109.90 - £159.90*
Rifle Barrels
0
Achieve unparalleled precision with the SINCLAIR Bullet Seating Depth Tool 🎯. Perfect for handloaders, works with bolt action & AR rifles. Shop now for accuracy! 🔍🔫
SINCLAIR INTERNATIONAL 0.590" BULLET SEATING DEPTH GUIDE
SINCLAIR BULLET SEATING DEPTH TOOL
SINCLAIR INTERNATIONAL
Not available
 
Bullet Seating Depth Tools
4.8
🎯 Achieve pinpoint accuracy with SINCLAIR INTERNATIONAL's Bullet Seating Depth Tool! Perfect for handloaders to measure rounds for rifles 🛠️. Get precise today! ✅
SINCLAIR INTERNATIONAL 0.825" BULLET SEATING DEPTH GUIDE
SINCLAIR BULLET SEATING DEPTH TOOL
SINCLAIR INTERNATIONAL
Not available
 
Bullet Seating Depth Tools
4.8
🎯 Transform your AR-15 with the CMMG Mk57 Conversion Kit to shoot .22LR! Easy install, no tools needed. Includes 3 mags. Get more fun at the range! 🛒
CMMG AR MK 57 CONVERSION KIT 22LR W/ 3 10-RD MAGS
AR MK57 CONVERSION KIT 22LR W/ MAGAZINES
CMMG
Reordered - Is a 'Call to order' product.
£284.90 * £284.90 - £314.90*
Bolt Carrier Groups
0
🔥 Switch to .22 LR with ease using the CMMG AR MK57 Conversion Kit! Includes 3 25-rd mags for endless fun. Ideal for cost-effective shooting. Get yours now! ✨
CMMG AR MK 57 CONVERSION KIT 22LR W/ 3 25-RD MAGS
AR MK57 CONVERSION KIT 22LR W/ MAGAZINES
CMMG
In stock - Is a 'Call to order' product.
£314.90 * £284.90 - £314.90*
Bolt Carrier Groups
0
🔧 Upgrade your AR-15 with the CMMG 5" Barrel & BCG Kit in .45ACP! Experience less recoil with Radial Delayed Blowback System. 🎯 Perfect for building a PCC. Shop now! ⚙️
CMMG 5" BARREL & BCG MT 1-16 .578X28 BLACK NITRIDE
BARREL AND BOLT CARRIER GROUP KITS 45ACP
CMMG
In stock - Is a 'Call to order' product.
£599.90 * £589.90 - £599.90*
Rifle Barrels
0
🔫 Upgrade your Ruger 10/22 with a sleek, durable Nordic Components aluminum chassis! Perfect for tactical setups, it's AR-15 compatible. Learn more! 🎯
NORDIC COMPONENTS RUGER 10/22 CHASSIS ALUMINUM BLK
RUGER 10/22 CHASSIS
NORDIC COMPONENTS
Not available
 
Rifle Stocks
3.7
Achieve perfect bullet seating with the Sinclair Int'l 0.555" Depth Tool 🎯. Ideal for handloaders seeking precision in rifles. Get accurate results every time! 🔍 Learn more.
SINCLAIR INTERNATIONAL 0.555" BULLET SEATING DEPTH GUIDE
SINCLAIR BULLET SEATING DEPTH TOOL
SINCLAIR INTERNATIONAL
Not available
 
Bullet Seating Depth Tools
4.8
Upgrade your AR-15 with Colt's M16 5.56 Bolt Carrier Group 🎯 High-pressure tested & MPI inspected for flawless performance. Shop now for top-tier reliability! 🔥
COLT M16 5.56 BOLT CARRIER GROUP
M16 5.56 BOLT CARRIER GROUP
COLT
Not available - Is a 'Call to order' product.
£284.90 *
Bolt Carrier Groups
5
🔫 Upgrade your AR-15 with the CMMG 8" Barrel & BCG kit in .45ACP! Experience less recoil with Radial Delayed Blowback System. Perfect for PCC builds. Shop now! 🛒
CMMG 8" BARREL & BCG MT 1-16 .578X28 BLACK NITRIDE
BARREL AND BOLT CARRIER GROUP KITS 45ACP
CMMG
In stock - Is a 'Call to order' product.
£589.90 * £589.90 - £599.90*
Rifle Barrels
0
🔥 Upgrade your AR-15 with the exclusive Brownells M89 Handguard & 13.7" 5.56 Barrel Bundle! Precision, rigidity & heat resistance. Shop now for this M-LOK system! 💥
BROWNELLS M89 11.5" DRIVE LOCK HANDGUARD W/ 13.7" 5.56 BARREL SET
M89 11.5" DRIVE LOCK HANDGUARD w/ 13.7" 5.56 BARREL BUNDLE
BROWNELLS
In stock - Is a 'Call to order' product.
£609.90 *
Handguards & Rails
0
Upgrade your AR-15 with the Faxon Firearms M16 Bolt Carrier Group 🎯 Precision-crafted 5.56 NATO mil-spec BCG with black nitride finish. Shop now for enhanced reliability & performance! 🔧✨
FAXON FIREARMS M16 BOLT CARRIER GROUP 5.56 NITRIDE BLACK
M16 BOLT CARRIER GROUP 5.56 MIL-SPEC
FAXON FIREARMS
Not available - Is a 'Call to order' product.
£199.90 * £199.90 - £269.90*
Bolt Carrier Groups
0
Upgrade your AR-15 with the Faxon Firearms M16 Bolt Carrier Group 🌈✨. MIL-SPEC quality, 5.56 NATO compatible, and Chameleon PVD finish. Shop now for reliability!
FAXON FIREARMS M16 BOLT CARRIER GROUP 5.56 CHAMELEON PVD
M16 BOLT CARRIER GROUP 5.56 MIL-SPEC
FAXON FIREARMS
Not available - Is a 'Call to order' product.
£269.90 * £199.90 - £269.90*
Bolt Carrier Groups
0
🔩 Upgrade your AR-15 with the Faxon Firearms M16 Bolt Carrier Group! Precision-crafted for 5.56 NATO, featuring a durable Titanium Nitride finish. Shop now! 🔫
FAXON FIREARMS M16 BOLT CARRIER GROUP 5.56 TITANIUM NITRIDE
M16 BOLT CARRIER GROUP 5.56 MIL-SPEC
FAXON FIREARMS
Not available - Is a 'Call to order' product.
£269.90 * £199.90 - £269.90*
Bolt Carrier Groups
0
Show 20 more results (Page 40)
Loading
761 - 780 of 812 results
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