Sig Sauer P365 X-Macro 21rd 9mm Magazine

This is a factory Sig Sauer magazine designed for the P365 series. It offers a high-capacity, double-stack configuration in a compact package, finished in black oxide with a coyote polymer baseplate and an orange anti-tilt follower. The magazine includes rear-facing witness holes to confirm loaded capacity and is intended for use with compatible P365 grip modules.

Key Specifications

• Magazine capacity is 21 rounds.
• Caliber is 9mm Luger.
• Compatible fit is Sig P365 series (P365, P365X, P365-XL, P365-XMACRO, P365-AXG Legion, and P365-FUSE as listed in manufacturer data).
• Model designation is P365-XMACRO.
• Magazine body material is steel.
• Baseplate material and color are polymer, coyote tan.
• Finish is black oxide.
• Follower is an orange polymer anti-tilt follower.
• Rounds are visible via rear-facing witness holes.

Built to factory specifications, this Sig Sauer magazine provides a durable, higher-capacity option for range use, competition, or everyday carry setups where a 21-round capacity is desired. Its combination of a steel body, reliable spring and follower, and a coyote polymer baseplate offers a practical balance of corrosion resistance, positive feeding, and a subdued visual profile for users who value functional, dependable components.