AT3™ SPEAR XL V2 Suppressor Ready Free Float AR-15 Handguard - 12 & 15 Inch - M-LOK

The AT3™ SPEAR XL V2 M-LOK Handguard is Suppressor Ready, Lightweight, and Easy to Install!

This suppressor-ready handguard free floats the barrel for accuracy, and maintains accuracy even with a suppressor underneath the handguard. Mount lights, grips, even laser modules where you need them with M-LOK attachment slots and a full length top rail. All without compromising your rail’s real estate while you’re running a silencer.

With 12” and 15” lengths available, the SPEAR XL handguard is ideal for customizing your next AR-15 build or upgrading an existing rifle with a buried suppressor. If you’re starting from a stock rifle, make sure you purchase a Low Profile Gas Block with the handguard.

What’s New in the SPEAR XL V2

The V2 redesign focuses on the mounting system. It’s stiffer and more secure under load.

• Extended barrel nut and collar: about 30% longer than V1. That means more contact area and friction for a tighter lockup and less deflection under lateral loads.
• Front-to-back mounting screws: the screws on the bottom now run parallel to the barrel instead of across it, which handles lateral loads better.

Lightweight & Suppressor Ready

• 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
• Extended steel barrel nut and aluminum collar with front-to-back mounting screws for a stiffer, more secure lockup
• 1.74″ Internal Diameter accommodates most suppressors for 5.56, .300 Blackout, and More
• Durable 6061 aircraft aluminum alloy construction – designed to take a beating
• Picatinny top rail perfectly aligns with AR-15 flat-top upper receivers, both forged and our AT3 Billet Upper

Dead Simple Installation

• Installs clean and secure with only a few simple steps – all you’ll need is a torque wrench, vise block, and vise.
• This unique design requires minimal timing – with a range of 30 to 80 ft/lbs of torque, it’s easy to align the gas tube.
• Perfect for assembling a new build or upgrading an existing rifle – it’s compatible with most upper receivers on the market
• Once you’ve got it installed, you’ll have plenty of room for M-LOK accessories and adapters

Exceptional Fit and Finish

• Choose from black anodized or Cerakote™ finishes that 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

More Information

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 Box

Handguard with V2 extended steel barrel nut, extended aluminum barrel nut collar 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)
• Version: V2
• Handguard Material: 6061-T6 Aluminum
• Finish
  • Black: Type 3 Hardcoat Anodized
  • Flat Dark Earth: H-267 Cerakote Magpul® Flat Dark Earth
  • OD Green: H-232 Cerakote Magpul® OD Green
  • Pink: H-224 SIG™ Pink
  • Burnt Bronze: H-148 Burnt Bronze
  • Tungsten: H-237 Tungsten
  • Titanium: H-170 Titanium
  • Red: H-167 USMC Red
• Handguard inside diameter: 1.74”
• Handguard outside diameter: 1.93″
• Barrel Nut Material: Steel
• Barrel Nut Type: Extended steel nut with extended aluminum collar (V2)
• Mounting Screws: Front-to-back orientation
• Included Rail Sections: One Aluminum Picatinny Rail Section – 1 3/4” Length, 5 slots
• Weight
  • 12″ Handguard – 12.5oz
  • 15″ Handguard – 14oz

Frequently Asked Questions

Will this fit my AR-15?

The SPEAR XL is designed for use with Forged Upper Receivers, our matching Billet Upper Receiver, and many other designs on the market. In most instances, it will also require the use of a low-profile gas block that fits underneath the rail. Piston systems may also be used, but check with the manufacturer first for exact dimensions.

This product will not work with non-milspec upper receivers like the Bushmaster Carbon due to the non-standard barrel threads.

We’re always glad to verify the fit for your rifle, just contact us! And if it doesn’t fit, we are glad to return it for you. And if you’re new to AR-15, we recommend watching a couple of the videos on our installation video page to understand how the process works.

Will this fit my Suppressor?

The SPEAR XL has a 1.74″ inside diameter, which will accommodate most suppressors for the AR-15. Typically, we recommend a 1.5″ diameter suppressor for use with this handguard, to ensure that the M-LOK slots are still able to be used surrounding the suppressor. Larger suppressors may have trouble fitting M-LOK accessories.

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)

What’s the difference between the SPEAR XL V1 and V2?

The V2 has a barrel nut and collar about 30% longer than the V1, and the mounting screws on the bottom now run front to back instead of side to side. The result is more contact area and a stiffer lockup under lateral loads.

How do I tell if I have a V1 or V2?

With the handguard off, look at the barrel nut and collar. The V2 versions are noticeably longer. With the handguard on, look at the mounting screws on the bottom. On V2 they run front to back (parallel to the barrel), and on V1 they run side to side. V1 and V2 barrel nuts are not interchangeable. If you need a replacement, get the SPEAR XL V2 Replacement Barrel Nut Kit. If you have a V1, use the original SPEAR XL Replacement Barrel Nut Kit.

NOTE: Due to the circular shape of the SPEAR XL handguard, the Magpul Gen 2 MBUS Iron Sights are not able to be activated. However, the Magpul Gen 3 MBUS and other iron sights will fit onto the SPEAR XL with no issue.