Description
If you already have Ruger American Pistol 9mm mags or want cross-compatibility with that platform, this factory magazine well insert makes it possible without permanent modifications to your PC Carbine.
The PC Carbine ships with an interchangeable magazine system that accepts SR-Series and Security-9 magazines by default, plus a Glock magazine well insert. This American Pistol well is the third option Ruger built for the platform. Swapping between wells takes just minutes with the included hex wrench, giving you the flexibility to use whichever magazine platform makes sense for your shooting needs.
Magazine Well Insert for Ruger American Compatibility
The insert accepts all Ruger American Pistol 9mm magazines, giving you access to that gun line's magazine ecosystem if you own or plan to own any of those pistols. It's a genuine factory part built to exact Ruger tolerances, so fitment and function are engineered in. The black glass-filled polymer construction delivers durability and a professional appearance that blends seamlessly with the carbine.
Installation and Durability
Installing this well insert is straightforward. The flush-fit design means it sits flush with the carbine's profile, and installation requires only the 5/32-inch hex wrench that comes with the PC Carbine itself. Full instructions are included in the package. Once installed, the polymer material stands up to regular range use and the demands of real-world shooting without breaking down or losing its fit.
Key Specifications
- Manufacturer: Sturm, Ruger & Co.
- Manufacturer Part Number (MPN): 90655
- UPC/EAN: 736676906550
- Fits Model: Ruger PC Carbine and PC Charger
- Compatible Magazines: Ruger American Pistol 9mm (Models 90510, 90514, 90617, 90618)
- Caliber: 9mm Luger
- Material: Glass-filled polymer
- Color/Finish: Black
- Style: Flush-fit
- Installation Tool Required: 5/32 inch hex wrench (included with PC Carbine)
- Made in: USA
- Quantity per Package: 1
- Accessory Type: Magazine well insert assembly
- Category: Genuine Ruger Factory Accessory
What’s Included
- Magazine well insert assembly
- 5/32 inch hex wrench
- Installation instructions
Frequently Asked Questions
Can I switch back to other magazine types after installing this insert?
Yes. The PC Carbine's magazine well system is designed to be easily swapped. With the included hex wrench, you can remove this insert and reinstall the original SR-Series or Glock well in just a few minutes. Ruger engineered the system specifically for this kind of flexibility.
Do I need any special tools to install this magazine well insert?
No. The only tool required is the 5/32 inch hex wrench, and that wrench comes with your PC Carbine. Installation takes about five minutes, and complete instructions are included with the insert.
Which Ruger American magazines will work with this insert?
This insert accepts all Ruger American Pistol 9mm magazines, including models 90510, 90514, 90617, and 90618. If you own or plan to own a Ruger American Pistol, the magazines from that gun will feed through your PC Carbine once this well is installed.
Is this a factory Ruger part?
Yes, this is an official Ruger factory accessory made in the USA. It's built to exact Ruger specifications and tolerances, ensuring perfect fit and reliable operation with your PC Carbine.




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