KCI USA 9mm/.40 S&W/.357 Sig Lower Parts Kit Fits Sig Sauer P320

The KCI USA lower parts kit is a high-quality, precision-engineered solution for completing or upgrading your pistol build. Designed for smooth operation and long-lasting reliability, this kit includes all essential internal components, ensuring a seamless fit and optimal performance. Perfect for gunsmiths, DIY builders and firearm enthusiasts, it meets strict manufacturing standards to deliver exceptional durability and functionality. Whether you're assembling a new firearm or replacing worn parts, the KCI USA lower parts kit provides a dependable and cost-effective option.