Shop A2 upper receivers, complete uppers, and rifle kits at Daytona Tactical. The classic A2 carry handle upper delivers the traditional AR-15 look with an integrated rear sight, forward assist, and durable mil-spec construction. Available in 5.56 NATO, our A2 lineup includes stripped carry handle uppers to build on as well as fully assembled complete uppers and rifle kits ready to go. In stock and shipping fast.