The Sig Sauer 8900268 X-Change Kit M18 9mm Luger Sig 320 Handgun Coyote Tan 17/21 rd delivers a modular upgrade for your Sig pistol, empowering you to unlock hundreds of configurations by swapping the complete slide, barrel, recoil spring assembly, grip module, and both 17-round and 21-round magazines. This advanced X-Change kit is designed for rapid transformation of your P320 platform, with a reflex optic compatible slide that supports rapid target acquisition and precision shooting, while the kit itself is not available for manual safety configurations. The Coyote Tan finish provides a distinctive look and durable wear resistance, making it a practical choice for diverse field and range environments. By integrating Sig Sauers precision engineering, this kit enables you to tailor ergonomics, capacity, and optics compatibility to match your shooting style, training needs, and competition demands. Whether youre enhancing duty readiness, competition performance, or recreational accuracy, the X-Change Kit expands your Sig 320 handguns versatility with reliable performance, clean handling, and seamless compatibility across your existing platform.