Expo Arms® M-LOK Patrol Series AR-15 Handguard - Black - 13"

Manufactured by Expo Arms
Manufactured by Expo Arms
2 Reviews

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Expo Arms® Handguards are machined from high-quality 6061-T6 aluminum bar stock, allowing for a slim profile with plenty of M-LOK slots for attaching grips, lights, and other accessories. This is a free float handguard that comes with a 6061-T6 aluminum barrel nut and anti-rotation tabs for an extremely strong lock up that will hold tight on any Mil-Spec receiver. At 13” in length, this M-LOK handguard will run great on any 16” AR-15s and has plenty of internal diameter for compatibility with low profile gas blocks. This Expo Arms Handguard is great for a new build or simply upgrading an old AR. Get yours today only at Primary Arms.

  • Black Hardcoat Anodized
  • Full M-LOK Compatibility (7 sides)
  • Anti-Rotation Tabs
  • 6061 Aluminum Construction
  • 6061 Aluminum Barrel Nut
  • Slim Profile Design
  • Compatible with all MIL-SPEC upper receivers

Expo Arms offers top-quality MIL-SPEC AR-15 components at rock bottom prices. Made in the U.S.A. and covered by Expo’s Limited Lifetime Warranty against manufacturer defects, material or workmanship problems, and even normal wear and tear.
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Accessory AttachmentM-LOK
BrandExpo Arms
FinishHardcoat Anodized
Gas System LengthExtended Rifle
Inner Diameter1.35 in
MaterialAluminum - 6061-T6

Ratings & Reviews

2 reviews

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Surprisingly impressive rail

by -

I bought a couple of these rails for builds that I’m doing with my boys. I liked these because they were smaller diameter, have mlok everywhere, have a continuous top rail, and have anti rotation tabs.
<br>What I didn’t expect was how impressed I’d be with the lockup system on the barrel nut. The key fits in a groove in the barrel nut and there is a screw that goes into the key that gets tighter into the barrel nut as you tighten it. There are 2 other screws on either side of that screw and what you end up with is a very rigid lockup system. It’s definitely a better mounting system than my Midwest Industries combat rail.


by -

Very well made. Good looking and easy to assemble. I will be buying another soon for my next build