The t-series handguards from midwest industries are one piece free floating handguards designed for optimum performance.Made from 6061 aluminum these handguards are sure to hold up and provide long term dependability.Everything needed for installation is included: barrel nut barrel nut wrench torque plate and hex keys.Rails: 4 PicatinnyType: HandguardFirearm Type: AR PlatformMaterial: 6061-T6 AluminumFinish: Black Hardcoat Anodized