Sons Of Liberty Gun Works 11.5" M89 Drive Lock Rail M-LOK (Includes Steel QD Socket) - M89-11.5

The Drivelock 11.5″ M‑LOK Rail, developed in collaboration with Icon Defense, brings a new level of handguard lockup and rigidity to modern sporting rifles. Its patent‑pending Drivelock design uses three independent wedges that engage angular grooves in the supplied proprietary steel barrel nut. As the wedges tighten, they clamp the rail to the barrel nut with extreme force and precision while simultaneously driving the handguard rearward toward the upper receiver — locking your rail and sight plane into a repeatable, robust platform.

Built from lightweight aircraft‑grade aluminum and finished in durable hard‑anodized black, the Drivelock rail offers a T‑marked flat top for consistent optic placement and multiple M‑LOK slots for accessory modularity. The slightly larger inside diameter gives you more real estate around the gas block and helps the extrusion run cooler under sustained use. Each rail ships with the barrel nut, barrel wrench, lock‑up components, and all installation hardware so you have everything needed for a proper installation. For maximum rail stability and exceptional fitment, get the Drivelock 11.5″ M‑LOK Rail at AR-15 Discounts.

Specifications

• Length: 11.5″

• System: Patent‑pending Drivelock (three‑wedge) clamp in collaboration with Icon Defense

• Material: Aircraft‑grade aluminum (extrusion) / Steel barrel nut included

• Finish: Hard anodized, black

• Mounting: M‑LOK slots (multiple)

• Top Rail: Full T‑marked flat top

• Includes: Proprietary barrel nut, barrel wrench, lock‑up components, installation hardware