High quality performance demanded with an easy drop-in barrel upgrade. This replacement barrel is precision manufactured in the USA to the highest standards providing exceptional accuracy. Conventional rifling with a polished chamber and bore to perform well with lead, plated, and jacketed bullets. This barrel is ready-to-use and is a perfect replacement for your existing Sig barrel. Does NOT fit the P320C (Compact) or X-Carry. Designed for P320 Full-Size (See Here)