This pre-ban 1980 Colt AR-15 SP1 is used and in good condition. One original Colt factory magazine is included. As a 1980 production model, the lower receiver does not have an internal sear block. The receiver is compatible with modern, standard bolt carrier groups (BCGs) and features standard .154-inch trigger pins. The provided photos show the rifle’s overall condition and original factory markings on components, including the barrel and bolt carrier group. They also highlight the original slab-side lower receiver design without a forward assist.