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ohhunt® AR-15 4 inch Free Float Handguard for 9MM 5.56/.223 Pistols

ohhunt® AR-15 4 inch Free Float Handguard for 9MM 5.56/.223 Pistols

Regular price $23.99 USD
Sale price $23.99 USD
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This 4" handguard is designed for strong construction, the optimal length and design to make any 9MM or 5.56/.223 pistol look outstanding.

1. Ultra Slim 4 inch M-LOK Handguard with Full Top Rail:

  • Guide Type: 4 inch Handguard
  • Compatible With: Pistols
  • Length: 4 inch / 104.5mm
  • Total weight (including Barrel Nut): 4.1oz/188g
  • Barrel Nut: External diameter: 1.35 inch, Inner diameter: 1 inch
  • Barrel Nut Thread Size: American Thread 1 1/4-18 UNC
  • Wrench Size: 1 1/4" Crowsfoot Nut Wrench
  • Rail Type: Picatinny
  • No. of Rails: 1
  • Material: 6061 Aluminum, Steel(Barrel Nut)
  • Manufacturer: ohhunt
  • OEM & ODM: Yes
  • Ultra Slim Design for Comfort and Weight Reduction
  • Cut for weight reduction, this system still retains the utmost in robust construction and provides a Picatinny top rail mounting system and plenty of attachment points for all your M-Lok accessories
  • Works with low profile gas blocks
  • 7 Sides of M-Lok Slots Around The Body
  • M-Lok & Picatinny Rails Hold All Your Accessories
  • With Anti-rotational Tabs For Secure Fit
  • 1913 Rail Meticulously Engineered To Be Ultra Light
  • Steel Barrel Nut And Allen Wrench Included

2. Lightweight 4 inch M-LOK Handguard with Part Top Rail:

  • Steel Barrel nut and all locking hardwares come with it.
  • 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: 4 inch M-LOK Handguard
  • Length: 4.33 inch / Pistol length
  • 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
  • Rail Type: Picatinny
  • No. of Rails: 1
  • Manufacturer: ohhunt
  • OEM & ODM: Yes

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.

3. 4 inch Quad Rail Handguard :

  • Guide Type: 4 inch Handguard
  • Length: 4 inch
  • Fit: AR Pistols
  • Rail Type: Picatinny Weaver
  • Materials: 6061 Aluminum Alloy
  • Finishes: Matte
  • No. of Rails: 4
  • Net Weight: 217g
  • Dimensions: 4.13"(Length) * 2.43"(Height) * 2.43"(Width)
  • Handguard: 1.7" internal diameter at its narrowest point
  • Barrel Nut: 1.05" internal diameter at its narrowest point
  • Includes: 4 inch Quad Rail handguard, barrel nut, castle nut, anti-rotation set screw, Allen wrench.
  • Manufacturer: ohhunt
  • OEM & ODM: Yes

Important Note:

The aluminum barrel nut is significantly lighter than steel barrel nuts, however it may be subject to damage during installation. We recommend using no more than 35 pounds of torque during installation. 

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Customer Reviews

Based on 23 reviews
Eric C.

At the top of the rail to sharp points on top Anti rotation totally useless they stop the rail from lining up with upper receiver had to shave them off barrel nut to long shorten overall the rail seemed pretty usable the price was right.

Scott E.
Great handguard!

Handguard is very stout, everything included to mount it.

James P.

Perfect Size great price right on time!

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.