Magpul MAG1486SST AMAG SG9 17rd 9mm Fits Sig P365 Stainless Steel

The Magpul MAG1486SST AMAG SG9 17-round 9mm magazine for Sig P365 is built for shooters who need a metal magazine option that delivers the same reliability Magpul brings to every product. If your P365 variant requires or prefers steel over polymer, this stainless-steel magazine handles the job with the proven features that have made Magpul mags the go-to choice for serious shooters. It's USA-made, corrosion-resistant, and compatible across the entire P365 platform—from Standard to Micro to X/XL frames.

What sets this magazine apart is the thoughtful engineering behind everyday usability. The flared floorplate strips free in seconds for field cleaning or spring maintenance, while the paint-pen dot matrix on the lower body lets you mark mags for load testing, ammunition type, or range sessions. High-visibility witness holes along the back strap show your round count at a glance, and the controlled-tilt orange follower feeds rounds consistently while making it easy to verify a loaded chamber.

The box includes two additional floorplates—one standard Macro configuration and one for X/XL and Standard/Micro grips—so you can tailor the mag to fit comfortably in whichever P365 variant you're carrying or training with. The stainless-steel spring and heat-treated body are engineered to cycle thousands of rounds without losing tension or developing reliability issues. For P365 owners who run steel mags exclusively or prefer the durability of stainless steel, this is a no-compromise choice.

Key Features

• 17-round capacity for 9mm, compatible with all P365 variants including X/XL, Standard, and Micro frames
• Corrosion-resistant stainless-steel body with heat-treated alloy for long service life
• Flared, easily removable floorplate for fast field maintenance and spring access
• High-visibility controlled-tilt follower with orange finish for quick visual confirmation of feed status
• Capacity-indicator witness holes in 1-round increments starting at 5 rounds
• Paint-pen dot matrix on magazine body for custom identification and load marking
• Durable stainless-steel spring engineered for consistent performance and longevity
• Includes two extra floorplate configurations: one Macro, one for X/XL and Standard/Micro
• USA-made

Specifications

Frequently Asked Questions

Will this Magpul magazine work with all P365 models?

Yes. The AMAG SG9 17-round is compatible with every variant of the Sig P365 platform, including the X/XL, Standard, Micro, and Macro frame sizes. The box includes floorplate and grip extension options so you can configure the mag for comfortable use in whichever P365 you're running.

Why choose a stainless-steel magazine for the P365?

Some shooters and certain P365 configurations perform best with metal magazines. Magpul's stainless-steel AMAG delivers the same feature set—witness holes, removable floorplate, controlled-tilt follower, durable spring—in a steel body that resists corrosion and handles aggressive use. It's a proven alternative for those who prefer or require steel.

What's included in the box?

You get one 17-round magazine assembled and ready to use, plus two additional floorplate configurations: one standard plate for Macro grip frames, and one for X/XL and Standard/Micro grip frames. This lets you customize the magazine fit for your specific P365 variant.

Can I take this magazine apart for cleaning?

Yes. The flared floorplate is designed to be easily removed by hand or with a simple tool, giving you quick access to the spring and follower for cleaning and routine maintenance. The paint-pen dot matrix panel on the magazine body is also handy for marking mags during load testing or maintenance cycles.