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AR-15 Lightweight 4 inch M-LOK Handguard, with Barrel Nut For Pistol, Free Float

AR-15 Lightweight 4 inch M-LOK Handguard, with Barrel Nut For Pistol, Free Float

Regular price $23.99 USD
Regular price $24.90 USD Sale price $23.99 USD
Sale Sold out
Shipping calculated at checkout.
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Estimated Delivery Time

United States: 10~15 days
Europe: 15~30 days
Other Countries: 10~35 days

4 inch M-LOK Handguard:

  • Steel Barrel nut included.
  • 2 shims included for easy indexing.
  • Ultra Slim 1.48” Outside and 1.29” Inside Diameter.
  • Simple Installation.
  • M-Lok & Picatinny Rails Hold All Your Accessories.
  • 4 Sides of M-Lok Slots Around The Body.
  • Five Integral Anti-Rotation QD Sling Sockets.
  • MIL-STD 1913 Picatinny Top rail.
  • Rugged 6061 Aluminum Hard Coat Anodized.


  • Type: M-LOK Handguard
  • Rail Type: Picatinny
  • Material: 6061 Aluminum, Steel (Barrel Nut)
  • Fits:223/556 series Upper Receiver with 1-1/4" 18UNEthread
  • Rail Type: Picatinny Weaver
  • Barrel Nut: External Diameter:1.35 inch, Inner Diameter:1.24 inch
  • Barrel Nut Thread: American Thread 1 1/4-18UNE
  • Pieces: 1
  • No. of Rails: 1

Important Note:

1、Barrel nut should NOT be tightened on the gearwheel side. Please avoid applying any force to the gearwheel/teeth while tightening barrel nut, it may damage its teeth.
2、The distance from center of barrel nut to the top of handguard rail is 1.23". If this distance is the same as the rifle receiver, the handguard rail will be flush with rifle receiver top rail.

Tips: Bulk order can order without logo, or print your own logo on handguards.

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Customer Reviews

Based on 20 reviews
Grover B.
best of forearms

the best of forearms and priced very good, easy to install..

Gavin W.
Honest review

These are incredible for the price. If you are snooty about brands, then go buy high end. These are perfect for any build and these install incredibly fast.


Accidentally gave at five stars instead of one star piece of sh

Not happy

Ar9 barrel is 5” exactly
This mlok (1st one in pictures) is 4.250”! Not 4.0 or 4.1”

Why does it matter? The threads are inside of the damn rail and you can’t do anything besides get a longer barrel or a shorter handguard. Good luck trying to add a suppressor whatever it was $23 wasted.

David K.

Awesome handguard, thanks!

Brian P.
Great and cheap

Put on an AR-9, light. Strong and great price. Will buy more

Like it

It went on fairly simply. Seems to be well made. Perfect length on my AR-22 PDW.

Steven T.
4" handguard

Fast shipping, great handguard. Just what I was looking for. Best price around too.

4” AR handguard

I finally received the handguard.
No complaints with the handguard - it’s great!
The delivery from China was a bit over a month. Know that if the item is not shipped from within the U.S. it will take 5-6 weeks, but you’ll get it.
My experience with Oh Hunt’s items have been very good.
It’s a great value for your money.

Good enough

It works just fine. But it was the only option I could find for a 4 inch quaud rail. I don't like the method of mounting it. But it's all I could find. I am satisfied with it. The finish looks cheap probably because it was a cheap rail.