7″ 3.74 3.68 5.76
9″ 4.08 4.06 6.15
12.375″ 4.69 4.58 6.66
15″ 5.12 5.01 7.12


AR-10 (DPMS-High)

7″ 4.93 4.87 6.95
9″ 5.26 5.25 7.34
12.375″ 5.88 5.7 7.85
15″ 6.3 6.2 8.3




Length AR-15 AR-10
7″ 4.8 5.9
9″ 5.4 6.5
12.375″ 6.6 7.7
15″ 7.2 8.3

All weights include the full barrel-nut assembly.

All weights in ounces (oz).


Under controlled laboratory tests the handguards can support a force of 90 pounds in any direction, and 600 pounds along their length – more than even extreme users require.

  15″ FAILURE:
Compression 1640 lbs
Tensile 630 lbs
Cantilever Bend 90 lbs

ID = 1.75″

OD = 2.00″

Lengths: Measured from tip of end cap to end of jam nut (i.e. fully installed length).

BLADE MODEL ONLY: The listed lengths (i.e. 7″, 9″, 12″, 15″) refer to the long side of the handguard. The opposite side is always 1.15” shorter, for all BLADE handguards.

Thread Count

Both our .223 and .308 barrel nuts use the standard Yankee Hill thread count.

Barrel Nut Torque

Recommended torque is 35-40 ft-lb (as with any standard aluminum barrel nut). A small spot of Moly Lube is also recommended, but not required.

AR-10 Barrel Nut

The large piece of the nut with the gas tube hole in it goes with the flat side towards the upper receiver, and the side with the smooth recess goes towards the muzzle. (It does not need to bottom out against the upper)

The inner ring (the piece that looks like a bicycle gear) needs to be tightened against the barrel extension collar. While this ring does need to make contact with the barrel collar, it should not be bottomed out against the barrel nut body.

So to start, back this “gear ring” out enough that you will be able to line up the gas tube holes when you tighten the barrel nut into place against the receiver so it does not bottom out.

Once the nut is fairly tight against the upper and the holes are aligned, tighten down the inner “gear” ring to lock the nut in place. It is ok if the nut is not cranked down tight as the inner ring will lock it.

Then screw the thin outer ring onto the barrel nut until it is butted up against the upper receiver.

Screw the handguard to the barrel nut as far as possible and tighten down until it is in the position you want (for example with the Atlas, the dome stub is at the bottom).

Then turn the thin outer ring back toward the handguard and snug it tight to lock it into place. There may be a slight gap between the handguard outer ring and the upper receiver on some brands.

Carbon Fiber

BA’s signature handguard is built on a platform of materials proven through aerospace applications and innovative mechanical design. It is composed of several composite yarns in a lattice that minimizes weight and maximizes stiffness and strength. Every yarn within the tube is formed from T700 carbon for strength and stiffness and shrouded within a protective jacket for all-weather durability and abrasion resistance. This jacket prevents cracking (common in filament wound handguards) and splinters (common in roll-wrapped handguards).

Heat Rejection (Cooling)

Under sustained fire the barrel will be cooler and the handguard will cool up to 50% faster after firing than with any enclosed guard. This improves barrel life and decreases heat signature duration.


Return Policy

We will cover your return shipping cost! Our goal is to provide you with technology that you are 110% pleased with. If you receive your handguard and wish to return it for any reason, just let us know within 60 days and we will take care of it. No questions asked.

Military/LEO Discount

Absolutely! Email some form of verification or credentials to ba@brigandarms.com and we will get you set up.

Tightening the Jam Nut

You can use any standard spanner wrench to cinch down the jam nut, or you can use a strap wrench, OR simply give the jam nut a tap with a screwdriver.

Any “Standard Spanner wrench”, or, “AR15 Armorer’s Wrench” will work to install the barrel nut and jam nut. Here is a link to the one we use ourselves, from Brownells: Armorer’s Wrench


Yes, the rails take well to cerakote! We recommend baking at a max of 250 degrees Fahrenheit.

300 Blackout Compatible?

Yes! You should order the “AR-15” barrel nut option when you get your handguard. You will have to remove your current barrel nut and install the Brigand barrel nut, which is a standard free-float style barrel nut.

Piston System Compatible?

Generally, no. Specifically we have tried the Adams Arms piston design and found that it is not compatible with our barrel nut system.

Rail Segment for Precision Accessories?

Yes! Our pic rails efficiently maintain zero for precise accessories like laser aiming devices or range finders. They also support general accessories like grips and flashlights. The only use they are not good for is back up iron sites (BUIS). If you want to use BUIS, please use Atlas. It is developed specifically for BUIS.


Absolutely, we’ve got you covered. Email: exports@brigandarms.com with your inquiry.


AR-15 Barrel Nut:

HOPLITE (Low-Profile):