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  • 4 Inch Lightweight M-Lok Handguard
  • 4 Inch AR-15 Lightweight Free Float M-Lok Handguard
  • 4 Inch AR-15 Lightweight M-Lok Handguard
  • 4 Inch Lightweight M-Lok Handguard
  • 4 Inch M-Lok Handguard
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AR-15 4" Ultra Slim Lightweight Free Float M-LOK Handguard With Barrel Nut For Pistol

Regular price
$24.90 USD
Regular price
$39.85 USD
Sale price
$24.90 USD
Ships From

4 inch M-LOK Handguard Features:

  • 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.

Free US Shipping

Ship from Chicago.
Estimated delivery time(USPS): 2 to 6 working days.

Customer Reviews

Based on 2 reviews
Brian P.
Great and cheap

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

Item w.a.d.I.a.f.
4" Handguard

Item was as described. It arrived fast.