Product Description The Rival Arms Precision Match Grade Drop-In Barrel for the Sig Sauer P320 Full Size is a premium performance upgrade engineered for shooters who demand consistent accuracy and long-term reliability. CNC machined from 4340H steel billet, this barrel provides exceptional corrosion resistance and structural durability. The Gold Physical Vapor Deposition (PVD) finish creates a hard, wear-resistant barrier that protects the steel while adding a bold, distinctive look. The fluted exterior reduces unnecessary weight without compromising rigidity, and the target-crowned muzzle ensures repeatable shot-to-shot accuracy. Chambered in 9mm Luger with a 3.90" barrel length and a 1:10" twist rate, this barrel is a true drop-in replacement for the Sig Sauer P320 Full Size and requires no gunsmithing to install. Product Highlights CNC machined from 4340H steel billet for superior strength, hardness, and corrosion resistance Gold PVD coating delivers a durable, wear-resistant finish with a premium aesthetic appeal Fluted barrel profile reduces weight while preserving barrel rigidity and heat dissipation Target-crowned muzzle promotes consistent bullet release for improved downrange accuracy True drop-in fit for the Sig Sauer P320 Full Size with no gunsmithing or modifications required Specs Brand: Rival Arms MPN: RA20P401E UPC: 788130031513 Caliber: 9mm Luger Barrel Length: 3.90" Twist Rate: 1:10" Material: 4340H Steel Finish/Coating: Gold PVD Barrel Type: Match Grade Barrel Features: Fluted, Target Crowned Firearm Fit: Sig Sauer P320 Full Size Sights: None Condition: New in Box Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>