This set includes an 80 % lower receiver with a Tungsten cerakote coating. This AR-15 rifle kit for sale also includes a Tungsten cerakote coated upper receiver. The lower receiver in this set has a fully broached magwell for the perfect fit. This AR-15 upper and 80% lower receiver set is a great choice to start your DIY AR-15 build. Both parts in this AR-15 rifle kit for sale have been bead blasted and finished with a Cerakote coating.