Sig Sauer P320/M17/M18 9mm 17-Round Magazine - Black/Coyote Steel
$50.00
The Sig Sauer P320/M17/M18 9mm 17-round magazine is genuine factory ammunition storage built to the exacting standards of one of the most widely issued duty pistols in the U.S. military and law enforcement. Whether you're running a P320 Compact, Full Size, or X-Five, or you trust the M17/M18 platform for serious shooting, having multiple factory mags on hand keeps you fed and ready. The 17-round capacity delivers serious volume without extended base pads that print or snag—a real advantage in duty or carry roles where you value concealment alongside firepower.
Sig engineered these magazines from hardened steel with a robust satin black finish that resists wear and corrosion through years of range time and duty use. The polymer follower and removable base plate are proven components that cycle ammunition smoothly and make routine cleaning and maintenance straightforward. Factory mags eliminate the guesswork around feeding reliability—this is the exact specification Sig designed for your P320 or M17/M18, not an aftermarket interpretation.
Serious shooters and duty-minded folks build redundancy into their carry or duty kit. One magazine is a single point of failure; three or four is a system. Add a spare or two to your rotation, and you've got backup for competitions, training blocks, or the simple reality that magazines take a beating over time. Original Sig factory magazines are the shortcut to peace of mind.
Key Features
- Genuine Sig Sauer factory specification—designed and tested for P320, M17, and M18 platforms
- 17-round 9mm capacity in a standard-height profile (no extended base pad)
- Hardened steel mag body with satin black finish for durability and corrosion resistance
- Removable base plate for field stripping and cleaning
- Polymer follower for smooth, reliable feeding cycle after cycle
Specifications
| Caliber | 9mm Luger |
| Capacity | 17 rounds |
| Finish | Satin Black / Coyote Steel |
| Body Material | Hardened Steel |
| Follower | Black Polymer |
| Base Plate | Removable |
| Compatibility | Sig Sauer P320, M17, M18 |
Frequently Asked Questions
Will this magazine work in my Sig P320 Compact or Subcompact?
These 17-round magazines are designed for P320, M17, and M18 platforms. Compatibility specifics—such as fit in Compact or Subcompact frames—depend on your exact model; we recommend confirming with Sig Sauer or your local dealer if you're unsure about your pistol variant.
What's the difference between a factory Sig mag and an aftermarket alternative?
Factory Sig magazines are engineered to the exact tolerances and materials Sig specified for the P320/M17/M18 when they designed the gun. That hardened steel body, polymer follower, and removable base plate are the components Sig tested and stands behind. Aftermarket alternatives cut corners on materials or fit to save cost; in a self-defense or duty firearm, factory parts eliminate compatibility and reliability questions.
Can I disassemble this magazine for cleaning?
Yes—the removable base plate allows you to strip the magazine for cleaning and inspection. Just push out the base, slide the follower and spring out, and reassemble after you've cleaned the internals.
Is this magazine compatible with the P250?
The supplier information mentions P250 compatibility, but these are specifically marketed as P320/M17/M18 magazines. If you own a P250 and need factory magazines, we recommend confirming cross-compatibility with the manufacturer before purchasing.
