Ruger 8506 AR-556 Lower, Black

Ruger AR-556 Stripped Lower Receiver American-made Ruger modern sporting rifle lower receiver is CNC-machined from forged 7075-T6 aluminum, is Type III hard-coat anodized and makes a great lower for those looking to build their own modern sporting rifle. Specifications: - Model: AR-556 - Caliber: 5.56 NATO|223 - Action: Semi-Automatic - Finish: Black