Sons of Liberty Gun Works M89 Drive Lock M-LOK Handguard Rail – 11.5″


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SKU: M89-11-5 UPC: 785939519792

Product Description

Introducing the Sons of Liberty Gun Works 11.5″ M89 Rail which utilizes the revolutionary, patent-pending Drivelock design in collaboration with Icon Defense. Drivelock uses three independent wedges that interface with the angular grooves in our proprietary barrel nut. This system clamps the rail onto the steel barrel nut with extreme force and precision, while also driving the handguard rearward towards the upper receiver. The slightly larger ID of that extrusion gives us more real estate around the gas block, even more rigidity than the M76, and takes longer to heat.


  • Finish: Mil-Spec Type III Hard Coat Anodized
  • Anodized to match SOLGW receivers
  • Engraved T-Marks
  • Includes Barrel Nut and Wrench
  • Includes Lock-up Components

Click to Download M89 Handguard Installation Guide


Technical Information

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California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit