This is a brand new in box CMMG Complete AR-15 Lower Receiver Assembly. The mil-spec receiver is expertly machined from forged 7075-T6 aluminum for exceptional strength, and black hard coat anodized for excellent corrosion resistance. An A2 style pistol grip and M4 style adjustable butt stock are fitted. This Lower Receiver is complete and requires only a complete upper receiver assembly, magazines, and cartridges to shoot. Lower receivers are considered to be a firearm, and must be shipped to a FFL.