Sons Of Liberty Gun Works M89 Heavy Drive Lock Rail M-LOK w/ Steel QD Sockets & Ti BBL Nut

The Drivelock™ handguard, developed with Icon Defense, brings a patent‑pending clamping system to AR-style builds. Its revolutionary three‑wedge Drivelock interfaces with the angular grooves of the supplied proprietary barrel nut, clamping the rail to the steel barrel nut with extreme force and repeatable precision. That same lock‑up drives the handguard rearward toward the upper receiver for an ultra‑tight, wobble‑free fit that improves consistency under recoil.

Manufactured from lightweight aircraft‑grade aluminum and finished in durable hard‑anodized black, the extrusion features a slightly larger internal diameter to give you more real estate around the gas block for routing and fitment. The robust profile increases rigidity and runs cooler during extended strings of fire. Each handguard ships complete with the barrel nut, barrel wrench, lock‑up components, and all installation hardware for a straightforward install.

Available lengths: 11.5″, 13″, 15″, and 16.75″ — choose the length that best fits your build. Shop the Drivelock™ M-LOK handguard now at AR-15 Discounts for competitive pricing and fast fulfillment.

Key Features

• Lightweight aircraft‑grade aluminum construction

• Patent‑pending Drivelock™ three‑wedge lock‑up (Icon Defense collaboration)

• Slightly larger ID for extra gas‑block real estate and improved rigidity

• T‑marked flat‑top rail for optics and mounting reference

• Multiple M-LOK slots for accessories and modularity

• Hard‑anodized black finish for durability and corrosion resistance

• Includes barrel nut, barrel wrench, lock‑up components, and all installation hardware

• Available lengths: 11.5″, 13″, 15″, 16.75″