Sons of Liberty Gun Works L89 Drive Lock M-LOK Handguard Rail – 13.75″


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SKU: L89-13-75 UPC: 644625329285

Product Description

Introducing the Sons of Liberty Gun Works 13.75″ L89 Rail, featuring the revolutionary patent-pending Drivelock design developed in partnership with Icon Defense, previously showcased on the renowned M89 Rail. The Drivelock mechanism employs three distinct wedges that seamlessly engage with the angular grooves found in our proprietary barrel nut. This groundbreaking system securely fastens the rail onto the steel barrel nut with exceptional force and precision, simultaneously moving the handguard towards the upper receiver. The slightly enlarged inner diameter of the extrusion provides us with a greater area around the gas block, enhancing rigidity beyond even the M76 model and delivering prolonged heat resistance.

The L89 model boasts comparable rigidity to the esteemed M89 Rail, with the notable addition of M-LOK compatibility on all sides and positions as well as integrated QD slots. Its distinctive length of 13.75″ is strategically designed to enable users to position their attachments as near to the muzzle as possible, optimizing customization possibilities. Notably, the inclusion of an exclusive titanium barrel nut further elevates the reliability of the already remarkably rigid locking mechanism while also reducing weight.


  • Finish: Mil-Spec Type III Hard Coat Anodized
  • Inner Diameter: 1.4″
  • Titanium Barrel Nut
  • Anodized to match SOLGW receivers
  • Engraved T-Marks
  • Includes wrench
  • Includes Lock-up Components


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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