The SIG Sauer P320 X-Series Sub-Compact Slide Assembly (SLIDE-320X-SC-9-BLK) is a factory OEM optics-ready upper designed to upgrade or refresh a compatible P320 fire-control unit in a compact footprint. Machined from stainless steel and finished in durable black Nitron, this 3.6? slide comes with XRAY3 day/night suppressor-height sights and a removable SIG-LOC R2 optics plate, providing a secure interface for modern micro red-dot optics. Weighing approximately 10.9 oz, it fits Sub-Compact, XCompact, and Compact grip modules and includes all internal slide parts, while barrel and recoil assembly are sold separately. It offers a turnkey factory solution to create a compact, optics-ready P320 with full X-Series fit and finish. Sig Sauer P320 X-Series 9mm 3.6" Bbl XRAY3 Sights R2 Optic Ready Blk Slide Assemby SLIDE-320X-SC-9-BLK