Sons of Liberty Gun Works M89 15″ DRIVE LOCK RAIL M-LOK
- Length: 15″
- Internal Diameter: 1.4″
- Finish: Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodized Coating, Non-Reflective, NiAc Seal (Anodized to match SOLGW receivers)
- T-Marks: Engraved T-Marks
What’s included: Rail, Barrel Nut, Lock-Up Components, and Instructions for Installation
The revolutionary, patent-pending Drivelock design, 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.
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