SIG SAUER P365-AXG/XMACRO 17-Round 9mm Magazine

The SIG SAUER P365 17-round magazine, manufacturer part number 8900844, is a factory magazine built for compatible full-length P365-family grip modules. Chambered for 9mm Luger and offering a 17-round capacity, it provides an OEM option for replacing a worn magazine or adding a dependable spare for training, range sessions, and lawful carry.

Factory magazine for the expanded P365 family

SIG SAUER identifies this magazine for multiple P365 configurations, including the P365-AXG, P365-XMACRO, P365-XMACRO COMP, P365-DH3, P365-FLUX, and P365-FUSE. Its full-length profile is intended for those compatible models and grip modules rather than every smaller P365 configuration without modification. Before ordering, compare the firearm model and grip module with SIG SAUER’s current compatibility information.

Using a genuine factory magazine helps preserve the intended relationship between the magazine body, follower, spring, feed lips, and magazine catch. That fit is particularly important on a defensive pistol, where consistent feeding, positive retention, and reliable slide-lock operation matter. The magazine carries SIG SAUER SKU 8900844 and UPC 798681661848 for exact identification.

17-round 9mm capacity

The 17-round capacity gives compatible P365 models a full-size ammunition load while retaining the slim grip geometry of the XMACRO and related platforms. It is useful as a primary magazine, a reload, or a dedicated training magazine. The factory body and base assembly are designed to seat correctly in the listed compatible grips and to work with their standard controls.

Key features

• Factory SIG SAUER pistol magazine
• 9mm Luger chambering
• 17-round capacity
• Compatible with listed P365-AXG and P365-XMACRO-family configurations
• Also listed for P365-DH3, P365-FLUX, and P365-FUSE models
• OEM construction for proper fit and function
• Manufacturer part number 8900844
• UPC 798681661848
• One magazine per package

Fit and responsible use

Magazine compatibility can depend on the exact pistol, grip module, and installed accessories. Confirm that your model appears in SIG SAUER’s current compatibility list before purchase. Do not force a magazine that does not insert, lock, or drop free normally. Capacity restrictions also vary by state and locality, so buyers are responsible for confirming that a 17-round magazine may be purchased, possessed, and used in their jurisdiction.

Inspection and maintenance

Inspect the feed lips, body, follower, spring tension, base assembly, and magazine catch opening before use. Keep the magazine free of dirt, lint, excess lubricant, and damaged ammunition. After cleaning, reassemble it according to SIG SAUER instructions and test it with the intended pistol and ammunition at a safe range. Magazines are wear items; replace any unit that becomes cracked, bent, heavily corroded, difficult to seat, or unreliable.

Package contents: One SIG SAUER 17-round 9mm magazine, MPN 8900844. Firearm and ammunition are not included.