Description
When it comes to spare magazines, there's really no substitute for going straight to the source. These are genuine Ruger factory magazines, made in the USA to the same specifications and tolerances as the magazines that ship with the Security-9 from the factory. The result is a fit and feed reliability that aftermarket options simply can't guarantee.
Each magazine holds 17 rounds of 9mm Luger and is built from black oxide alloy steel with an impact-resistant polymer floorplate. Numbered witness holes run down the side so you can check your round count at a glance without having to drop the mag. They ship with a flush-fit floorplate installed, and a polymer adapter is included in the pack for a clean, secure fit in the Security-9's grip.
Beyond just the Security-9 pistol, these magazines are also compatible with the Security-9 Pro and the Ruger PC Carbine, provided you have the SR9/Security-9 magazine well insert installed. That makes this two-pack a solid choice if you run both platforms and want to simplify what's in your range bag. Just keep in mind these are not designed for the Security-9 Compact, and they are not compatible with the SR9 or SR9c.
For anyone who uses their Security-9 for home defense, range work, or just wants a backup mag on hand, buying them in a two-pack is the practical move. You get two reliable, full-capacity magazines at a better per-unit value than buying singles.
Key Specifications
- Manufacturer Part Number: 90691
- UPC: 736676906918
- Caliber: 9mm Luger
- Capacity: 17 Rounds
- Quantity: 2 Per Pack
- Material: Black Oxide Alloy Steel
- Finish: Black Oxide
- Style: Detachable
- Floorplate: Flush-Fit (installed)
- Includes Adapter: Yes, polymer grip adapter included
- Country of Origin: USA
- Compatible Firearms: Ruger Security-9, Security-9 Pro, PC Carbine (with SR9/Security-9 mag well insert)
- Not Compatible With: Security-9 Compact, SR9, SR9c
- Brand: Ruger / Sturm, Ruger & Co.
What’s Included
- 2x Ruger Security-9 17-round 9mm magazines
- Flush-fit floorplate (installed on each magazine)
- Polymer grip adapter (for use in Security-9 pistol grip)
Frequently Asked Questions
Will these Security-9 magazines work in my Ruger PC Carbine?
Yes, these magazines are compatible with the Ruger PC Carbine, but you'll need the SR9/Security-9 magazine well insert installed in the carbine first. With that insert in place, they feed reliably and it's a great way to share mags between your pistol and carbine.
Are these the same magazines that came with my Security-9 from the factory?
Yes, these are genuine Ruger OEM factory magazines manufactured to the same specifications and tolerances as the original equipment magazines. They're not aftermarket or third-party versions, so fit and function should be exactly what you'd expect.
Will these fit the Ruger Security-9 Compact?
No, these 17-round magazines are not recommended for use with the Security-9 Compact. The Compact uses a shorter grip frame and a different magazine. Make sure you're selecting mags matched to your specific model.
Do these magazines fit the Ruger SR9 or SR9c?
They do not. Despite some visual similarities between the SR9 and Security-9 platforms, these magazines are not compatible with the SR9 or SR9c pistols. They are purpose-built for the Security-9, Security-9 Pro, and PC Carbine with the appropriate mag well insert.
What does the polymer adapter do, and do I need it?
The included polymer adapter fills the gap between the magazine body and the Security-9's grip frame, giving you a clean, flush fit when the magazine is seated. If you're running these in the Security-9 pistol, you'll want to use it. It's a small detail that makes a real difference in how the gun feels in hand.
Why buy the two-pack instead of single magazines?
Having a second magazine ready to go saves time at the range and just makes sense as a backup for home defense use. The two-pack gives you better per-unit value than buying individually, and you'll end up wanting that second mag anyway.




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