This Tyrant Designs rear slide cap fits the Sig Sauer P365 and replaces the slide backplate with a 3D CNC-machined aluminum part. It is machined from aerospace-grade aluminum and anodized black, so it matches a black P365 slide while adding a cleaner, more finished look to the back of the pistol. The face carries a raised 3D chevron design, and every edge is chamfered smooth, so the cap reads as a deliberate upgrade rather than a stock part. It is a small, subtle change that sets your P365 apart from a factory gun. Features Fits: Sig Sauer P365 Material: aerospace-grade aluminum, 3D CNC machined Finish: black anodized Raised profile with a 3D chevron design Smooth chamfered edges Fit check: this cap is made for the Sig Sauer P365. If you run another P365-family model, confirm that its rear slide cap matches the standard P365 before you order.