This new Sig Sauer P250 pistol fires the .40S&W round. This awesome Sig offers a complete versatility in your firearm. You get a sub-compact size P250 and all the components to rapidly convert your gun into a full size. The barrel length on the sub-compact size version is 3.5", on the full size version it is 4.75". Both versions have night sights. When your Sig is in the full size version, your magazine capacity is 14 + 1 rounds. In the sub-compact version your capacity is 10 + 1 rounds. This pistol comes with the usual box, manual, and lock.