The Sons Of Liberty Gun Works 13.75” M89 Handguard. This new model uses Sons Of Liberty Gun Works patent-pending Drivelock design. The handguard uses three independent wedges that interface with the angular grooves in their proprietary barrel nut. This system clamps the rail onto the steel barrel nut while also driving the handguard rearward towards the upper receiver. The slightly larger inside diameter of that extrusion gives more real estate around the gas block, even more rigidity than the M76 style handguard and takes longer to heat.
Features:
13.75” total length
Features a rugged wedgelock mounting system
Machined from aluminum with hardcoat anodized finish
Full length picatinny rail
M-LOK slots at 45° positions
Includes 4140 Steel barrel nut