LanTac Raven Billet Receiver Set Features The key feature of the LanTac Raven Receiver Set is the patent-pending SMOOTHCAM system. This includes a domed head low friction cam pin and specially designed upper receiver to ensure ultra-smooth operation enhancing the overall shooting experience. This receiver set is crafted from billet 7075-T6 certified aluminum known for its excellent strength-to-weight ratio and resistance to corrosion. This makes it both sturdy and lightweight improving handling without compromising on durability. The receiver set is finished in anodized black giving it a sleek professional look while adding an extra layer of corrosion resistance. It s designed to be a semi-automatic offering fast reliable performance. LanTac Raven Billet Receiver Set Specifications Manufacturer: LanTac USA LLC Model: Raven Action: Semi-automatic Type: Lower/Upper Set Color: Black Subcategory: Lower Receivers Finish: Anodized Material: 7075-T6 certified aluminum Caliber Compatibility: 5.56 / .223 Rem Country of Origin: USA