Zaffiri Precision ZPS.P, Optic Ready Stripped Ported Slide, Trijicon RMR Footprint, Fits Sig Sauer P320 Compact, Stainless Steel Construction, Cerakote Finish, Armor Black ZPS.P.P320C.BLK Zaffiri Precision Stainless Steel Slides were designed with tight tolerances to increase accuracy and performance. Easy to install and machined from Billet Stainless Steel then coated" these slides are a great addition to anyone's Sig collection.