The Packaged AR-15 Stripped Lower Receiver is American made with superior quality for less. Anderson's lower receivers are CNC machined from a high-strength, 7075 T6 aluminum forging for reliable performance and outstanding durability. Machined to military specifications & standards and marked "Multi-Cal" to be used with multiple calibers on the AR-15 platform. NOTE: Requires a lower parts kit, buffer & stock of your choosing to complete. Brand : Anderson Category : Lowers Model : Receiver Firearm Fit : AR-15 Gun Platform : AR-Style Type : Stripped Receiver Material : 7075-T6 Aluminum Receiver Finish : Black Anodized Trigger : None Weight : 0.68 lbs