Description
The Sig Sauer P365 12-round magazine in Coyote Brown is a genuine factory original part built to the same specs as what ships with your pistol. If you carry a P365 and want a little more round count without jumping to a completely different setup, this is the magazine to grab. Twelve rounds of 9mm in a package that still fits in a standard P365 holster is a solid setup for everyday carry.
The magazine body is steel with a stainless finish, and the Coyote Brown color comes from the polymer finger extension on the baseplate. That extension does real work beyond just looking good. It gives your pinky somewhere to go on the standard P365 frame, which makes a noticeable difference in grip control, especially for shooters with larger hands. The coyote color is also a nice touch if you're running a two-tone or FDE-themed pistol build.
One of the more practical things about this magazine is its cross-platform versatility. It fits flush in the P365X and P365XL, and extends slightly in the standard P365. Sig includes a second baseplate so you can configure it however you need. Remove the sleeve for flush-fit use in the X or XL, or run the extension on the standard P365 for added grip. Worth noting: this magazine does not fit the P365-XMACRO, AXG, or FUSE models, so double-check your variant before ordering.
As a factory Sig part, you're getting the same tolerances and feed reliability that the P365 was designed around. Third-party mags have their place, but for a carry gun, sticking with OEM means one less variable to worry about.
Key Specifications
- Manufacturer: Sig Sauer
- MPN: MAG-365-9-12-COY
- UPC: 798681619221
- Model Compatibility: P365, P365X, P365XL
- Caliber: 9mm
- Capacity: 12 Rounds
- Material: Steel
- Finish: Stainless
- Color: Coyote Brown
- Style: Extended
- Fit in P365X / P365XL: Flush fit
- Fit in Standard P365: Extended
- Not Compatible With: P365-XMACRO, AXG, FUSE
What’s Included
- Sig Sauer P365 12-round 9mm magazine (Coyote Brown)
- Additional flush-fit baseplate
Frequently Asked Questions
Will this magazine fit my P365XL?
Yes, this magazine is compatible with the P365XL. It sits flush in both the P365X and P365XL frames when the baseplate sleeve is removed. In the standard P365, it will extend slightly below the grip, which also helps with purchase and control.
Does the P365 12-round magazine work with the P365-XMACRO or AXG?
No. Sig Sauer confirms this magazine does not fit the P365-XMACRO, AXG, or FUSE models. If you own one of those variants, you'll need a magazine designed specifically for that platform.
Why does the magazine ship with two baseplates?
Sig includes both an extended finger-groove sleeve and a flush baseplate so you can configure the magazine for whichever P365 variant you're running. The flush baseplate is for use in the P365X and P365XL, while the finger extension is intended for the standard P365 frame.
Is this a genuine Sig Sauer factory magazine or an aftermarket product?
This is a 100% OEM factory magazine made by Sig Sauer, not an aftermarket product. It's built to the same specifications and tolerances as the magazines that ship with new P365 pistols, which matters for reliable feeding in a carry gun.
Does the Coyote Brown color cover the whole magazine or just part of it?
The magazine body itself is steel with a stainless finish. The Coyote Brown color is on the polymer finger extension and baseplate. So you'll see the brown on the bottom of the magazine where it extends below the grip.
New magazines can feel stiff to load. Is that normal?
It's completely normal for new factory magazines to feel tight when loading, especially when you get close to full capacity. The spring and follower will break in over time with regular use. Loading tools like a magazine loader can make the process easier during that initial break-in period.




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