The Sons of Liberty Gun Works L89 13.75 Inch M-LOK Handguard in black (SOLGW part no. L89-13.75) uses a revolutionary, patent-pending Drivelock design developed in collaboration with Icon Defense. Three independent wedges interface with angular grooves cut into SOLGW’s proprietary barrel nut, clamping the rail onto the steel barrel nut with extreme force and precision while simultaneously driving the handguard rearward against the upper receiver. The design also opens up more real estate around the gas block than a standard extrusion, adding rigidity and extra margin against heat buildup during sustained fire.

Key Specifications

• Uses a patent-pending Drivelock design developed with Icon Defense, built around three independent wedges.
• Clamps onto SOLGW’s proprietary barrel nut with extreme force and precision.
• Drives the handguard rearward against the upper receiver for a tighter, more rigid fit.
• Opens up more real estate around the gas block compared to a standard extrusion.
• Offers more rigidity than SOLGW’s prior-generation handguard design.
• Takes longer to heat up during sustained fire for a cooler grip surface.
• Overall length measures 13.75 inches.
• Part of SOLGW’s L89 handguard line.
• Mounts accessories via M-LOK slots.

Frequently Asked Questions

What makes the Drivelock design different from a standard barrel nut clamp? Three independent wedges interface with angular grooves in SOLGW’s proprietary barrel nut, clamping with extreme force while driving the handguard rearward against the upper receiver.

What length is this handguard? 13.75 inches, part of SOLGW’s L89 line.

Buy the Sons of Liberty Gun Works L89 13.75 Inch M-LOK Handguard

Upgrade your rail system with an AR handguard from Sons of Liberty Gun Works. Order it from our Lubbock, Texas gun shop, and it will ship as soon as it’s ready.