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This is a direct replacement slide assembly for Sig Sauer P320 Compact-sized platforms, built to work with a 3.6-inch barrel in 9mm Luger. It arrives fully assembled and ready to drop onto a compatible P320 frame, making it straightforward whether you're doing a complete rebuild or swapping out a worn slide. The black finish matches the standard P320 aesthetic and resists corrosion.
The big advantage here is the factory-mounted Romeo-X PRO reflex sight, which Sig engineered to sit low on the slide. This low mounting position is the key difference from other optic-ready slides because it allows true co-witness with your standard-height iron sights. That means you can run the reflex sight when you want it, but when the optic battery dies or you just prefer iron sights that day, you've got them ready to use without obstructed by a tall red dot base. It's practical for field use and gives you flexibility without forcing you into suppressor-height sights.
The slide assembly ships with everything built in: the striker assembly, extractor assembly, front and rear sights all pre-installed and ready to function. You need a 3.6-inch barrel (not included) to complete the upper, plus a recoil spring assembly. The modular P320 design means this works with both X-Series and non-X-Series Compact grip modules, giving you options for customization on the lower end of your build.
This uses Sig's quality stainless steel slide with their Nitron black finish, built to factory specifications for consistent performance and durability. All internal components are factory-spec parts engineered for reliability across shooting applications. The serrated front and rear allow solid purchase for charging and manipulating the slide.
No, the barrel is sold separately. This assembly is the upper receiver only and accepts a standard 3.6-inch 9mm barrel. You'll also need a recoil spring assembly to complete your build.
This slide is designed for Compact-size grip modules, and it's compatible with both Sig X-Series grips and standard non-X-Series Compact grips. This gives you flexibility in choosing the lower frame that fits your hand and intended use.
Absolutely. The Romeo-X PRO is engineered to sit low on the slide, which means your included standard-height iron sights are fully functional for aiming. You get co-witness capability, so you can transition between the optic and iron sights without any modification needed.
Yes, it arrives fully assembled and ready to install. All internal parts like the striker and extractor assemblies are pre-installed and tested at the factory. Just drop it onto a compatible P320 Compact frame with a barrel and recoil spring assembly.
| UPC | 798681692538 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 8901566 |
| Model | |
| Sights | Xray3 |
| Style | Front & Rear Serrations |
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