Sons of Liberty Gun Works L89 Drive Lock Rail Features The Sons of Liberty Gun Works L89 Drive Lock Rail uses the Drivelock tensioning crossbolt system together with an extended barrel nut to create one of the most rigid handguard-to-receiver interfaces available in a traditional two-piece AR-15 build. Keyed upper receiver interfaces and anti-rotation tabs lock the rail firmly in place while a stainless steel center index dowel helps align everything precisely during installation. This level of rigidity is especially valuable for shooters running optics or lasers that depend on a stable zero. At 9.75 long and 13.3 oz installed the rail adds minimal weight while delivering significant mounting real estate. Seven-sided M-LOK attachment slots run the length of the handguard giving shooters the flexibility to mount lights foregrips slings and other accessories exactly where they need them. Two integrated steel QD sockets provide additional sling mounting points without needing separate QD adapters. Fast slots positioned beneath the 12 o clock position allow zip ties to route cables for lights or lasers cleanly along the rail. Finished in anodized black the L89 Drive Lock Rail brings SOLGW s combat-tested handguard design to any compatible AR-15 build. Sons Of Liberty Gun Works L89 Drive Lock Rail Specifications Manufacturer: Sons Of Liberty Gun Works Model: L89 Drive Lock Rail Type: Handguard Compatible Hosts: AR-15 Color: Black Finish: Anodized Description: M-LOK Length: 9.75 Available At: GrabAGun