The Sig Sauer P320 9mm 3.9" Bbl Black Slide Assembly w/XRAY3 Sights, ROMEO-X PRO & Integrated Compensator is designed to enhance the performance of your P320 pistol. This slide assembly features a durable Nitron-finished stainless steel slide with an integrated compensator for reduced muzzle flip and felt recoil. The factory-mounted ROMEO-X PRO reflex sight provides quick target acquisition, while the XRAY3 day/night sights offer excellent visibility in all lighting conditions. The slide is compatible with the factory 3.9" barrel and full-size recoil spring assembly, making it an ideal upgrade for your P320.