Shot Sale | Up to 30% Off! Shop Now

AT3™ Forged AR-15 Upper Receiver and Pro Quad Rail Combo

Out of Stock
Orders will Ship within 1 Business Day
Backed by the AT3 Lifetime Warranty!
TOP ADD-ON'S
AT3™ AR-15 Bolt Carrier Group -  5.56 NATO/.300 Blackout - Black Nitride

AT3™ AR-15 Bolt Carrier Group - 5.56 NATO/.300 Blackout - Black Nitride

$67.99

AT3 Forged Upper with Lightweight Quad Rail Combo

If you’re looking to update your rifle with a custom look and a rock solid quad rail, save big by bundling AT3’s forged upper receiver with the Pro Quad Rail! This setup is perfect for building out a custom upper, and dropping it onto a milspec lower receiver. With a few simple tools, this AR upper combo kit comes together to make an exceptional package that’s light on cost.

When you buy this kit, you get a stripped forged upper receiver, a lightweight picatinny quad rail, plus an upper receiver parts kit for finishing the dust cover and forward assist. We also offer this kit in a variety of Cerakote colors, so you can really make your rifle your own, with the option to color match on Magpul FDE and OD Green shades.

Improved Design and Easy Installation

The Pro Series Rail comes in 7″, 9″, 12.5″, and 15″ inch lengths, making it ideal for upgrading existing guns or starting fresh with specialized AR15 builds. And with our selection of barrelsgas blocksmuzzle devicesbolt carrier groups, and charging handles, you can get the custom upper you need at the right price.

Solid and Secure Mounting

  • This rail is lightened down all four sides of Picatinny Rail, making it lightweight while still remaining solid for all your favorite accessories
  • 5 Integrated non-rotating QD Sockets for a variety of sling configurations
  • Durable 6061 aircraft aluminum alloy construction – designed to take a beating
  • Picatinny top rail perfectly aligns with AR-15 flat-top upper receivers
  • Handguard uses screws to clamp around the barrel nut, with anti-rotation tabs and anti-slip screws that ensure a rock-solid lockup

 

Simple Installation

  • Installs easily, just like our SPEAR M-LOK rail – you’ll only need a few simple tools to get the rail installed. Click here to view our instructions.
  • Once you’ve got it installed, you’ll have plenty of room for any Picatinny rail accessories like lights, foregrips, lasers, or bipods
  • Seriously, it’s easy. Check out our video below for a guide on the complete installation.

 

Exceptional Fit and Finish

  • Durable matte-black anodized finish resists scratches and provides an attractive surface that matches the rest of your build
  • Vented rails on all 4 sides reduce weight and help dissipate heat from shooting
  • Scalloped rails and clean lines for a unique look that flows into the AT3 Billet Upper
  • Proudly made in the USA
  • Backed by the AT3 Lifetime Warranty

What’s in the box?

  • AT3 Forged Upper Receiver
  • AT3 Pro Quad Rail (Includes all hardware and barrel nut wrench)
  • AT3 Upper Parts Kit (Forward Assist and Dust Cover Assemblies)

I want to keep my front sight base! Which length do I choose?

Use the appropriate length rail for your gas system:

  • Carbine Length – 7″ Pro Quad Rail
  • Midlength – 9″ Pro Quad Rail
  • Rifle Length – 12.5″ Pro Quad Rail

Specifications

  • Rifle Type: AR-15 (If you have a .308 AR variant, check out our AR-10 / .308 page)
  • Receiver Material: 7075-T6 Aluminum
  • Handguard Material: 6061-T6 Aluminum
  • Standard Finish: Hardcoat Anodized Black
  • Cerakote Finishes
    • Flat Dark Earth: H-267 Magpul® Flat Dark Earth
    • OD Green: H-232 Magpul® OD Green
    • Gray: H-188 Magpul® Stealth Grey
    • Pink: H-224 SIG™ Pink
    • Burnt Bronze: H-148 Burnt Bronze
    • Tungsten: H-237 Tungsten
    • Titanium: H-170 Titanium
  • Handguard inside diameter: 1.35”
  • Barrel Nut Material: 7075-T6 Aluminum
  • Barrel nut inside diameter: 1.02” (compatible with barrels up to 1” diameter)
  • Weight
    • 7″ Handguard – 9 oz
    • 9″ Handguard – 12 oz
    • 12″ Handguard – 15 oz
    • 15″ Handguard – 1 lbs 2oz
    • Hardware (Barrel Nut and Screws) 1.6 oz.
  • Actual Handguard Length
    • 7″ – 7″
    • 9″ – 9″
    • 12.5″ – 12.5″
    • 15″ – 15.0″

What tools and additional parts are required?

For parts – most setups will require a low profile gas block to sit under the handguard – most barrels will work with the handguard.

For tools – we recommend:

  • A vise and non-marring vise block for holding the upper
  • Roll pin punch and non-marring hammer for driving in the forward assist pin
  • A torque wrench and breaker bar to assure you stay in the AR-15 barrel nut torque range while timing the barrel nut (30-60 ft lbs)
  • Blue Loctite for the mounting screws

Products available on this page:

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

Customer Reviews

Based on 2 reviews
100%
(2)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
M
Miles FRANCISCO
Excellent hand guard!

Fits perfectly no wiggle.

Thank you for your kind review! We're glad to hear that the hand guard fits perfectly and doesn't have any wiggle. We strive to provide high-quality products for our customers, so it's great to know that you're satisfied with your purchase. Thank you for choosing our AT3™ Forged AR-15 Upper Receiver and Pro Quad Rail Combo. Happy shooting!

T
Todd Connaghan
Nice!!

Very well manufactured and the coating is great. The alignment tabs on the fore end were an unexpected bonus ( or I didn't read the description well enough). Will dVery well manufactured and the coating is great. The alignment tabs on the fore end were an unexpected bonus ( or I didn't read the description well enough). Will definitely buy again when I want my next build.efinitely buy again when I want my next build.

Thanks for the review. We're glad you like the product!

Customers who viewed this item also viewed these products

AT3 Tactical Billet Upper and Pro Quad Rail AR-15 Handguard Combo with Cerakote Finishes

AT3™ AR 15 Upper Receiver and Pro Quad Rail Handguard...

$174.99$139.99
Upgrade or Start Your Next Build with our Newest Billet Upper and Pro Quad

AT3™ Forged Upper Receiver and SPEAR Handguard Combo

$144.99$115.99
AT3 M-LOK Handguard with Forged AR Upper Combo Build your rifle the way you

AT3™ Forged AR-15 Stripped Upper Receiver

$89.99$76.49
AT3 Forged AR Upper – Just Add Forward Assist and Dust Cover The Forged
AT3 Tactical SPEAR XL with Forged Upper Combo - Anodized and Cerakote

AT3™ Forged Upper Receiver and SPEAR XL Suppressor Ready Handguard...

(no reviews yet)
$219.99$175.99
AT3 SPEAR XL M-LOK Suppressor Ready Handguard with Forged Upper This suppressor-ready AR-15 handguard

Range Tool 15 Inch M-LOK AR 15 Handguard with Forged...

$144.99
An Affordable Upper and Handguard Combo for Your Next AR-15 Build If you’re looking
AT3 Slick Side Billet Upper Receiver - 7 Colors Available

AT3™ Slick Side Upper | Billet Upper Receiver for AR-15

$89.99$76.49
Tough, Sleek, and ready for the AT3 SPEAR M-LOK Handguard Machined from billet aluminum,

AT3™ Slick Side Upper Receiver and SPEAR XL Suppressor Ready...

(no reviews yet)
$229.99$183.99
AT3 SPEAR XL M-LOK Suppressor Ready Handguard with Slick Side Upper This suppressor-ready handguard
AT3 AR-15 Billet Upper and M-LOK Handguard with Cerakote Finishes - 7 Colors

AT3™ AR 15 Upper Receiver and SPEAR Handguard Combo

$169.99$135.99
Getting Started on Your Next Build? Go Sleek and Lightweight with our Billet Upper
AT3™ Low Profile Steel Gas Block + Gas Tube + Roll Pin Combo

AT3™ Low Profile Steel AR 15 Gas Block + Gas...

$35.99$30.59
Buy As A Set And Save! This combo includes your choice of 4 different
AT3 Tactical Pro Quad Rail AR-15 Handguard with Cerakote Finishes

AT3™ Pro Quad Rails - Free Float AR15 Handguards –...

$104.99$83.99
The New and Improved Pro Quad Rail – Lightweight, Rigid, and Easier to Install
AT3™ Low Profile Micro Steel Gas Block - 4 Sizes Available

AT3™ Low Profile Micro Steel AR 15 Gas Block -...

$25.99$22.09
This premium Steel Micro Gas Block comes in 4 sizes: .625″, .75″, .875″, and

Range Tool Forged AR 15 Upper Receiver

(no reviews yet)
$59.99
Stripped Forged Upper Receiver for the DIY Builder Whenever you’re starting a new AR-15
UTG Pro Drop-In Quad Rail for AR-15

UTG Pro Drop-In Quad Rail for AR-15

$59.97
UTG Pro Drop-In Quad Rail for AR-15 UTG has designed a clever top/bottom two-piece
AT3™ AR 15 Gas Tube & Carbine Gas Tube Length

AT3™ AR 15 Gas Tube - Carbine, Mid, Rifle, &...

$13.99$11.89
Quality, USA made stainless steel gas tubes with roll pins for AR rifles. Note:
Luth-AR Forged A2 Assembled AR-15 Upper Receiver

Luth-AR Forged A2 Assembled AR-15 Upper Receiver

$197.35
Luth-AR A2 Upper: Classic AR-15 Style – Fully Assembled & Ready! Embrace the iconic

Frequently purchased together

AT3™ LEOS™ Red Dot Sight with Integrated Laser Sight &...

$129.99$103.99
The AT3 LEOS™ (Laser Enabled Optic System) is Accurate, Versatile, Reliable, & Packed with

B5 Systems Grip Plug for P-Grips

$9.98
B5 Systems Battery Storage Plug for Pistol Grips The B5 Systems Grip Plug makes
FDE

B5 Systems Bravo AR-15 Stock - Mil-Spec

B5 Bravo Stock – Enhanced Cheekweld Stock Streamlined for users who want optimal performance
Magpul Moe Grip for Pistol Grip

Magpul MOE Pistol Grip for AR-15 – MAG415

$19.99
Unparalleled Feel And Quality – Amazingly Affordable The Magpul Moe Grip is a top-notch
Ergo Picatinny 18 Slot Rubber Rail Protector - 3 Pack - Various Colors

Ergo Picatinny 18 Slot Rubber Rail Protector - 3 Pack...

$16.50
Ergo Picatinny 18 Slot Rubber Rail Protector – 3 Pack ERGO Grip’s 18-Slot Low-Pro
LBE Unlimited Retro AR-15 3 Prong Flash Hider - AT3 Tactical

LBE Unlimited Retro AR-15 3 Prong Flash Hider

$17.99
3-Prong Retro Flash Hider For The Classic AR-15/M16 Build This LBE Unlimited Retro Flash

Radian Raptor-LT Ambidextrous AR 15 Charging Handle

$74.95
Radian Raptor LT with Polymer Levers The Raptor-LT charging handle utilizes the same patented
KAK Industry 12.5 Inch Midlength 5.56 NATO AR-15 Barrel

KAK Industry 12.5 Inch 5.56 NATO AR-15 Barrel

$115.31
Elevate Your AR-15 Performance with KAK Industry’s 12.5 Inch 5.56 NATO Barrel Introducing the
Fortis Billet Dust Cover with Carbon Fiber - AT3 Tactical

Fortis Billet Dust Cover with Carbon Fiber Inserts

$37.95
Ultralight Billet Dust Cover with Carbon Fiber Inserts 40% lighter than traditional dust covers

Strike Industries Cobra Billet Trigger Guard for AR15

Make Your Rifle Stand Out With SI’s Cobra Aluminum Billet Trigger Guard The Strike
KNS Precision Generation 2 Trigger Group Pins

KNS Precision Generation 2 Trigger Group Pins

$29.00
Top Notch Anti-Rotation Pins – Great Add on to Any Build Dubbed as the
Rise Armament Nickel Boron AR-15 Bolt Carrier Group - AT3 Tactical

Rise Armament Nickel Boron AR-15 Bolt Carrier Group

$179.99
Rise Armament Nickel Boron AR-15 Bolt Carrier Group RISE Armament offers its signature AR-15

Strike Industries AR-15 SHIFT Takedown and Pivot Pins

(no reviews yet)
$21.95
Strike Industries AR-15 SHIFT Takedown and Pivot Pins Effortlessly maintain your AR15 with Strike

Strike Industries Lightweight Forward Assist for AR15

(no reviews yet)
Rugged & Lightweight Forward Assist Upgrade From Strike The Strike Industries Lightweight Forward Assist
Armaspec B2 AR-15 Extended Mag Release - ARM107-BLK

Armaspec B2 AR-15 Extended Mag Release - ARM107

$19.79
Extend Your Button For An Easier & Quicker Magazine Release & Faster Reloads The

Questions & Answers

Don't see the answer
you're looking for?

Loading questions...