The Sig Sauer P320 Pro-Cut slide assembly (brand part no. 8900950) is a factory replacement built for X-Compact through X-Full size P320 pistols, finished in a durable PVD black coating with stylized front and rear relief cuts. It’s designed to run 9mm 4.7-inch non-threaded or 5.5-inch threaded barrels and comes cut for a wide range of optics footprints, including the ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR (with a sealing plate). XRAY3 Day/Night suppressor-height sights co-witness through most red dots, and a removable optics plate with top-accessible screws makes swapping between a bare slide and a mounted optic simple.

Key Specifications

• Built as a factory replacement Pro-Cut slide assembly for the Sig Sauer P320.
• Fits X-Compact through X-Full size P320 pistols.
• Compatible with a standard 9mm 4.7-inch non-threaded barrel.
• Also compatible with a standard 9mm 5.5-inch threaded barrel.
• Optic footprint accepts the ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR (with a sealing plate).
• Fitted with XRAY3 Day/Night suppressor-height sights.
• Finished in a durable PVD black coating.
• Features stylized front and rear relief cuts for a faster grip.
• Includes a removable optics plate.
• Optics plate uses top-accessible screws for mounting.

Frequently Asked Questions

What optics will this slide accept? The ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR footprint (RMR requires a sealing plate).

What barrel length does this slide use? A standard 9mm 4.7-inch non-threaded or 5.5-inch threaded barrel.

Do the sights co-witness with a red dot mounted? Yes, the XRAY3 sights are suppressor-height for co-witness with most mounted optics.

Buy the Sig Sauer P320 Pro-Cut Optic-Ready Slide

Add optics-ready capability to your P320 with a factory Sig Sauer slide. Order it from our Sig Sauer lineup, part of our handgun parts selection, and get it shipped fast from our Lubbock, Texas gun shop.