The SIG SAUER P320 Nitron Full-Size is a modern, polymer-framed, striker-fired handgun designed and manufactured by SIG SAUER. This product review will cover the various features, specifications, and our opinion of the SIG SAUER P320 Nitron Full-Size. P320 Nitron Full-Size 9MM About Sig Sauer, the P320 The Sig Sauer P320 is a semi-automatic pistol manufactured […]