Matrix Arms Foxtrot M-LOK Free Float Handguard - Black

SKU# 1729 | by Matrix Arms
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An unbeatable value, the Foxtrot M-LOK Handguard by Matrix Arms is a quality hard coat anodized rail featuring a straight forward install process and quality hardware. This free floating, slim profile handguard has a continuous 1913 Picatinny rail. It is manufactured using 6061 T6 Aluminum and the high quality anodizing makes for a durable structure and quality, resilient finish. The M-LOK slots allow for a variety of accessories and attachments to be used. At only 10.39 ounces for the 13.5" variant this is one of the lightest handguards you can get without sacrificing durability.

Inside Diameter: ~1.300"

Length Weight
13.5" 10.39 ounces
15" 12 ounces

Includes: Handguard, Barrel Nut and Allen Screws

Customer Reviews

Based on 16 reviews
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  • Reviews (16)
  • Questions (7)

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Charles D.
United States

First time ordering from

The website was easy to navigate, the price was great, shopping was fast, and the item was just as it was advertised. What else could you ask for? I think I'll be ordering from this business again.

Charles D. verified customer review of Matrix Arms Foxtrot M-LOK Free Float Handguard - Black
Jonathan L.
United States

Matrix handguard

The item works ok but I was unhappy with the overall finish & scratches found on the item when I received. This seemed to be a blemished item

Moises F.
United States

Great company

I purchased a 13” Matrix Arms free float rail on Friday for a budget upper build and it was at my door, in Texas, on Monday. This company has the fastest shipping out there and their customer service is outstanding. This store will be my first “go to” when looking to buy other parts. Wow! Great job!

Kim Y.
United States

The 1st one was so nice, I ordered a 2nd ...

To my eye, this is a *good-looking* free float forearm. This free float forearm design is light, strong and both attaches & lines-up easily. It is also does not feel so much like a cheese grater as so many do. In response to an email interrogatory, Matrix told me that their suggested torque for the 3 attachment screws is 55 in/lb ... but, considering the threads are aluminum, I just cannot bring myself to crank those screws down so tight, so I satisfied myself with 20 in/lb (+ blue loctite). If that shows any sign of loosening, I will increase it a little. :) The only (minor) downside was having to source a 1 3/16" crow foot wrench in order to properly torque the unique barrel nut. If Matrix Arms is going to stick with that design (which, btw, negates having to carefully lineup gas tube holes) it might behoove them to consider including a cheap, stamped crow foot wrench that can easily handle the required ~30ft/lb. ... good selection, great prices and friendly, helpful folks! :)

Jason S.
United States


Easy to pit on.

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