War Sport Costa Ludus AR-15 Stripped Lower Receiver (Black Cerakote Finish)

If you're looking to build your battle rifle with the absolute best parts, then you'll want to start with the War Sports Costa Ludus AR-15 Lower Receiver, with a black Cerakote finish. This receiver is constructed to military specifications, and is ready for either 5.56mm NATO or 223 Remington. This receiver also comes equipped with markings for select fire.