The Sharps Bros SBHG06 is a Full Top Rail model that provides a Picatinny top running the full length. This design offers ample space for mounting any additional accessories. It features a 14\" Full Top Rail M-Lok Handguard and package includes Barrel Nut & Hardware.The handguard is constructed from durable 6061-T6 aluminum and finished with an anodized black coat compliant with mil-spec MIL-A-8625F, Type III, Class 2. The accompanying barrel nut is made from strong 4140 PH steel.The full top rail also boasts M-Lok slots on seven other sides, along with the inclusion of anti-rotation tabs. The hand guard carries a weight of only 9.0 ounces, with the barrel nut and hardware adding a minimal 2.6 ounces.