AT3™ AR 15 Upper Receiver and SPEAR Handguard Combo

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$149.59
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Getting Started on Your Next Build? Go Sleek and Lightweight with our Billet Upper and SPEAR M-LOK Handguard.

This Upper Group Uses a 15 Inch Handguard with Magpul Flat Dark Earth Cerakote

The slim free-float design of the SPEAR handguard enhances accuracy while minimizing the weight of your rifle, M-LOK attachment slots and included rail section provide unlimited options for accessorizing your build. Our billet upper matches the contours of the handguard perfectly, for a monolithic look in 3 different finishes.

With 12” or 15” lengths available, the SPEAR handguard is ideal for starting your next AR-15 build or upgrading an existing firearm. And with our selection of barrels, gas blocks, muzzle devices, bolt carrier groups, and charging handles, you can get the custom upper you need at the right price.

Lightweight & Durable

  • Slim and lightweight M-LOK design, with attachment points at the 3, 6, & 9 o’clock positions and lightened Picatinny rail at the 12 o’clock position
  • Durable 6061 aircraft aluminum alloy construction – designed to take a beating
  • Picatinny top rail perfectly aligns with the included billet upper, with matching finish and lines for a monolithic look.
  • Handguard uses screws to clamp around the barrel nut, with anti-rotation tabs and anti-slip screws that ensure a rock-solid lockup
Anti-Rotation Tabs prevent shifting after taking hard impactsThe AT3 Spear handguard locks up solidly with the billet upper receiver

 

Easy to Install

  • Installs clean and secure with only a few simple steps – all you’ll need is a torque wrench, vise block, and vise. Click here to view our instructions.
  • Seriously, it’s easy. Torque down the barrel nut, slip the handguard over and tighten down the screws. No need for special plates or adhesives for a rock-solid fit
  • Perfect for assembling a new upper build – be sure to check out our selection of upper receiver components for completing a custom job!
  • Once you’ve got everything installed, you’ll have plenty of room for M-LOK accessories and adapters.

Vented Design - Lightweight and reduces heatM-LOK and Picatinny Rails Hold All Your Accessories

Exceptional Fit and Finish

  • Durable matte-black anodized or Cerakote finishes resist scratches and provide an attractive surface that matches the rest of your build
  • Vented top rail reduces weight and dissipates heat from shooting
  • Finger grooves down the length of the handguard provide a more ergonomic hold and a unique look
  • Fully dehorned and free of burrs and other sharp snag points
  • Proudly made in the USA
  • Backed by the AT3 Lifetime Warranty

Smooth Machining - No Sharp EdgesAT3 SPEAR M-LOK AR 15 Free Float Handguard proudly made in the USA

More Information

Full kit – includes all mounting hardware, plus one M-LOK 5-Slot Rail section and barrel nut wrench.

AT3 Tactical Spear M-LOK Free Float Handguard Flat Dark Earth 9 Inch with Barrel Nut, 5 Slot Rail, and Hardware

Note: most rifle setups will require the use of a low profile gas block that sits under the handguard.

Included in the combo:

Billet upper receiver, handguard with aluminum barrel nut and all mounting hardware, one 5-slot M-LOK to-Picatinny rail, hex wrenches for handguard and rail sections, and barrel nut wrench.

Specifications:

  • Rifle Type: AR-15 (If you have a .308 AR variant, check out our AR-10 / .308 page)
  • Material: 6061 Aircraft Aluminum
  • Included Rail Sections: One Aluminum Picatinny Rail Section – 1 3/4” Length, 5 slots
  • Finish: Hard-coat anodized (matte black) or Cerakote – Magpul FDE, Stealth Grey, OD Green, Prison Pink, Titanium, Tungsten, and Burnt Bronze
  • Handguard inside diameter: 1 3/8”
  • Barrel nut inside diameter: 1.02” (compatible with barrels up to 1” diameter)
  • Weight
    • 9″ Handguard – 9.9 oz
    • 12″ Handguard – 10.9oz
    • 15″ Handguard – 11.9oz
    • Billet Upper – 7.1oz
  • Actual Handguard Length
    • 9″ – 9.25″
    • 12″ – 12.0″
    • 15″ – 15.0″

Want to see the full kit in action? Check out 704 Tactical’s Review!

What tools and additional parts are required?

For parts – most setups will require a low profile gas block.

For tools – we recommend:

  • A vise and non-marring vise block for holding the upper
  • A torque wrench to assure you stay in the AR-15 barrel nut torque range while timing the barrel nut (30-60 ft lbs)

Have Questions About this Product?


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 123 reviews
93%
(114)
5%
(6)
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1%
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C
Chris
Quality Parts!

Used for a 350 Legend 10.5 pistol project. Fit and finish locks nice. And functions flawlessly. Very impressed with quality and price. I will definitely buy again!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

L
L.c.
Spear hand rail and upper combo

Hands down some of the best quality parts I have worked with. Build turned out amazing, 15" Spear rail, 16" Ar-stoner light weight 223 wylde barrel, AT3 .750 gas block and mid length gas tube combo, and AT3 flash hider. Awesome fast shipping and service. The BEST part, its all made in the USA!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

N
Nate
Amazing Upper Combo

The fit and finish of the upper and Spear handguard are great. I'd say it's on par with Aero, with the caveat being that this upper is made from 6061 instead of 7075 aluminum. I really love the clean, modern look of the setup.

Everything went together easily and the barrel nut/handguard interface is probably the easiest I've ever installed. Love the OD green! I think I'll do an FDE build next.

My only suggestions:
1. Make a larger diameter version of the handguard that can clear a suppressor inside.
2. Upgrade this to 7075 aluminum.

Thanks, AT3!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

R
Robert Kitchen
Returning Customer

I used an AT3 upper / hand guard combo for a 6.5 Grendel precision rifle I built last year, and it has performed very well. I wanted to upgrade my 5.56 precision rifle, so I again turned to AT3 for the same combo. The stainless 20" BCM barrel fit very well, and the assembly was flawless. I tested it for flex when using the bipod, and the hand guard is very strong and stiff, with no noticeable movement.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

O
OnlySheepVoted4Biden
Sweet ass titties

This rail is pretty damn awesome.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.