DealNew, never installed stripped Colt Lower receiver. This is the "Sporting" model from Colt. Forged 7075-T6 Alloy Marked .223 Caliber Model is CSR16 The lower is a Mil Spec lower. It is a small pin (standard) production lower. This is the same as all the other standard AR lowers out there. from JSE Surplus (Product LRCOLTS) |