Zaffiri Precision Stainless Steel Slides were designed with tight tolerances to increase accuracy and performance. There are two different optic configurations, as well as and variety of coatings for a customized look. These are among the best aftermarket slides available for Sig. This slide has been coated and optic cut, no additional changes can be made. Compatible with and designed to fit Sig P365 frame. These slides are designed to work with the NEW STYLE Sig P365 Extractor. This product is not compatible with the Sig P365 SAS. SPECS Machined from 17-4 Stainless Steel Slide Model: ZPS.2 This Slide is pre-cut and pre-coated Choose from 4 Cerakote Col Mfg: Zaffiri Precision