The Sons of Liberty Gun Works L89 handguard takes what makes the M89 handguard a best in class product, and elevates it even further. The L89A features an integrated ARCA Rail along with 5 sides of M-LOK slots for mounting lights and accessories. Built on the M89/Drivelock lockup system, the L89 incorporates valued end user feedback in getting the most utility possible out of a handguard in modern combative applications. Maximum strength, maximum mounting space, and weight savings material choices make this one of the finest fighting handguards available to date. IncludedL89A RailTitanium Barrel NutBarrel Nut WrenchLock-Up Components FeaturesFinish: Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodized CoatingNon-ReflectiveAnodized to match SOLGW receiversEngraved T-MarksIntegrated ARCA Rai