
Availability: In Stock
Current Stock: Out of stock
The Sig Sauer P320 X-Series 9mm slide assembly with 4.7" barrel delivers a factory-engineered upgrade path for shooters ready to build or refresh their carry or competition pistol. This optic-ready slide comes dressed with X-Ray 3 suppressor-height sights and a PRO-cut footprint that accepts modern red dots, making it a solid foundation for a modern duty or sport gun without the price of a complete handgun.
Built from stainless steel with a durable DLC matte finish, the slide pairs the ruggedness you'd expect from Sig with the refinement their X-Series platform is known for. The removable flush-fit optics plate means you can mount your choice of compatible optic and swap it out cleanly—top-accessible screws keep installation straightforward. X-Ray 3 day/night sights give you a reliable backup sight picture whether you're running a red dot or going iron-only. This is the slide only; barrel and recoil assembly are separate, so you're building a purpose-built setup rather than buying redundant parts.
This 9mm slide works with sub-compact, X-Compact, and compact grip modules, giving you flexibility in final ergonomics and concealability. It's compatible with standard 9mm barrels—choose a 4.7" non-threaded or 5.5" threaded barrel to match your intended use, whether that's concealed carry, range duty, or a suppressed setup. If you're swapping slides to breathe new life into an existing P320 or building a backup gun, this assembly gets you most of the way there without the commitment of a full pistol purchase.
| Brand | Sig Sauer |
| Caliber | 9mm Luger |
| Barrel Length | 4.7" (non-threaded) or 5.5" (threaded) |
| Slide Material | Stainless Steel |
| Slide Finish | Nitron DLC (matte black) |
| Sights | X-Ray 3 Day/Night Suppressor Height |
| Optic Ready | Yes (PRO footprint) |
| Loaded Chamber Indicator | No |
| Manufacturer Number | 8900959 |
The PRO-cut footprint accommodates ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR (with sealing plate). The slide ships with a removable flush-fit optics plate, so mounting and removal is straightforward.
This slide is compatible with Sig Sauer sub-compact, X-Compact, and compact grip modules. You'll choose your grip based on your carry or use preference, then pair it with your barrel of choice.
This is the slide only. You'll need to source a compatible 9mm barrel (4.7" non-threaded or 5.5" threaded for this specification) and recoil assembly separately to complete your P320.
No. This slide is 9mm Luger only and is not compatible with .40, .357, or .45 caliber barrels or ammunition.

SKU: 115727037 • Width: 3.8in • Height: 2.5in • Depth: 12.7in • Weight: 0.95oz





Availability: In Stock
Current Stock: Out of stock
The Sig Sauer P320 X-Series 9mm slide assembly with 4.7" barrel delivers a factory-engineered upgrade path for shooters ready to build or refresh their carry or competition pistol. This optic-ready slide comes dressed with X-Ray 3 suppressor-height sights and a PRO-cut footprint that accepts modern red dots, making it a solid foundation for a modern duty or sport gun without the price of a complete handgun.
Built from stainless steel with a durable DLC matte finish, the slide pairs the ruggedness you'd expect from Sig with the refinement their X-Series platform is known for. The removable flush-fit optics plate means you can mount your choice of compatible optic and swap it out cleanly—top-accessible screws keep installation straightforward. X-Ray 3 day/night sights give you a reliable backup sight picture whether you're running a red dot or going iron-only. This is the slide only; barrel and recoil assembly are separate, so you're building a purpose-built setup rather than buying redundant parts.
This 9mm slide works with sub-compact, X-Compact, and compact grip modules, giving you flexibility in final ergonomics and concealability. It's compatible with standard 9mm barrels—choose a 4.7" non-threaded or 5.5" threaded barrel to match your intended use, whether that's concealed carry, range duty, or a suppressed setup. If you're swapping slides to breathe new life into an existing P320 or building a backup gun, this assembly gets you most of the way there without the commitment of a full pistol purchase.
| Brand | Sig Sauer |
| Caliber | 9mm Luger |
| Barrel Length | 4.7" (non-threaded) or 5.5" (threaded) |
| Slide Material | Stainless Steel |
| Slide Finish | Nitron DLC (matte black) |
| Sights | X-Ray 3 Day/Night Suppressor Height |
| Optic Ready | Yes (PRO footprint) |
| Loaded Chamber Indicator | No |
| Manufacturer Number | 8900959 |
The PRO-cut footprint accommodates ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR (with sealing plate). The slide ships with a removable flush-fit optics plate, so mounting and removal is straightforward.
This slide is compatible with Sig Sauer sub-compact, X-Compact, and compact grip modules. You'll choose your grip based on your carry or use preference, then pair it with your barrel of choice.
This is the slide only. You'll need to source a compatible 9mm barrel (4.7" non-threaded or 5.5" threaded for this specification) and recoil assembly separately to complete your P320.
No. This slide is 9mm Luger only and is not compatible with .40, .357, or .45 caliber barrels or ammunition.
SKU: 115727037 • Width: 3.8in • Height: 2.5in • Depth: 12.7in • Weight: 0.95oz
