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AT3™ Upper Receiver and SPEAR Handguard Combo
Lifetime WarrantyOn All AT3 Brand Products
All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.
This includes AT3 Red Dot Sights, Handguards, Iron 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.
Fast & Free Shipping On orders over $50
You will receive fast, free shipping for all orders over $50
Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.
Most orders received by 1pm CST ship the same day
You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.
Getting Started on Your Next Build? Go Sleek and Lightweight with our Billet Upper and SPEAR M-LOK Handguard.
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
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.
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
Full kit – includes all mounting hardware, plus one M-LOK 5-Slot Rail section and barrel nut wrench.
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.
- 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)
- Handguard inside diameter: 1 3/8”
- Barrel nut inside diameter: 1.02” (compatible with barrels up to 1” diameter)
- 12″ Handguard – 9.3 oz (handguard only) / 10.9oz (handguard hardware)
- 15″ Handguard – 10.3oz (handguard only) / 11.9oz (handguard hardware)
- Billet Upper – 7.1oz
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?
This is an awesome product at a great price! I am really happy how the handguard flows right into the billet upper. These guys know what they're doing. Another nice touch is the cool AT3 logo and "Made in the USA" engraved into handguard. I can't say enough on how happy I am with this.
Really nice match set of upper and hand guard. It was super easy to build, fine quality at a great price! Love how they interlock together. Like all AT3 products, too notch. Love your Red Dots! I have 4.
Great sale over Black Friday! Thank you! Steve (Hawaii)
The product is good quality. Price is grate. And you ship fast.
Fantastic product shipping was fast, exactly what I looking for in the price range. Very lightweight
Honestly... I love this combo.
Just when I thought I was the only one who wanted to build a grey rifle.... I find this!
The finish is excellent and the color (at least the Magpul Stealth Gray) is a perfect match. Seriously, no one else had the color... I either had to settle for sniper gray or get a black set and pay to have it cerakoted.
I built a 7.62x39 rifle with this set. Installation was easy and the fit with my billet lower was perfect.
Next build, Im coming here first. Nothing better out there for the price and the shipping was free and got here in less than a week.