Foxtrot Mike Products Ultra Light Free Float Handguard - M-LOK - Gen 2 - 8.5"

Manufactured by Foxtrot Mike Products
SKU: FM-5.56-8.5ULHG
MPN: FM-5.56-8.5ULHG
Manufactured by Foxtrot Mike Products
5 Reviews

Out of Stock

NOTE: Limit 5 per household. Quantities exceeding 5 will not allow checkout.



Free float handguards offer many improvements to the standard two-piece Mil-Spec AR-15 handguards. They reduce pressure on the muzzle end of the barrel which increases accuracy, offer more customization in terms of accessory mounting options, and come in many different lengths and profiles. The Foxtrot Mike Products FM-9 Ultra Light handguard features a slim profile with M-LOK attachment points along the full 8.5” in length. It is machined from 6061-T6 aluminum and has a type III hardcoat anodized finish for excellent corrosion resistance. This AR-15 free float handguard is compatible with all Mil-Spec upper receivers and most low-profile gas blocks, so you have the freedom to build your rifle the way that you want. It is easy to install with the included proprietary barrel nut and eight hardened steel screws to ensure that it won’t loosen over time. This M-LOK handguard also has a full length picatinny top rail that mounts flush with M4 flat top upper receivers to give you more mounting space for scopes, red dots and iron sights. If you are looking to upgrade your current SBR, pistol, or build a new one, you can’t go wrong with this FM products AR-15 handguard.

  • M-LOK compatible at 3, 6, and 9 o’clock positions for lights, grips, bipods, and other accessories
  • Single piece free float design that is lightweight and durable
  • Machined from 6061-T6 aluminum
  • Mil-Spec hardcoat anodized black
  • Light and slim profile for increased ergonomics and comfort
  • Includes proprietary barrel nut
  • Full length picatinny top rail
  • Barrel nut requires 1 3/16 wrench (30 MM)
  • Made in the U.S.A.

Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.
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Accessory AttachmentM-LOK
FinishAnodized Black
Gas System LengthCarbine
Handguard Length8.50 in
MaterialAluminum - 6061-T6

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

5 reviews


Pleasantly surprised!

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I give it 4 stars right out of the box. Great quality and craftsmanship. It’s very lightweight, which will work perfectly with my designated 22 build. Pleasantly surprised! This may be my go to handguard for all future budget builds.

Best handguard for this price by far.

by -

I'm very pleased with this handguard. It's very lightweight, fit and finish are good too. Easy to install, and looks great. Of course I have some Gucci hanguards on other builds, but this is my new go to on budget builds.

It's just OK, but works for the price

by -

Overall finish of the handguard itself is excellent, but rail size is off-spec. The rail is slightly narrower and lower than the rail on a mil-spec upper receiver. The handguard is needed to set timing to the receiver creating an awkward process for alignment. Additionally, there's play in the fit between the handguard and the barrel nut, so once you get the guard close to being lined up, you need to make sure it comes to the full extent of that play before tightening to help avoid it coming unaligned with use. Put the screws in loosely and use locktight on each one. Once aligned, alternate tightening the screws. They tell you that all you need is a box wrench to put the barrel nut on, not wise. Use a 1-1/4" crow’s foot with a torque wrench, tighten, back off and then tighten to torque. Two of the securing screw holes were crooked and required some tap correction to get them to sit correctly. Docking two stars for lack of QC and poor handguard to barrel nut fitment.

Best bang for your buck!!


Such great value for the price!! The looks of it the usefulness of it go hand in hand with my review of it the barrel but was very easy to time and install all in all a great guard

Installation Video Link is Needed

by -

Fits well, installs easy (view the video) and price was good. The finish is much lighter than the anodized black on my BCA and PSA uppers.