SIG SAUER P365-380 .380 ACP 10-Round Extended Magazine

The SIG SAUER P365-380 10-round extended magazine is a factory replacement magazine for the P365 Micro-Compact chambered in .380 ACP. It pairs the pistol’s standard 10-round capacity with an integrated finger extension that adds useful support at the front of the grip. The result is a practical spare or replacement for owners who want the familiar factory fit while gaining a little more gripping surface than a flush-base magazine provides.

Factory Fit for the P365-380

This magazine is built specifically for the .380 ACP version of the P365. Its steel magazine body, black finish and extended base configuration are designed around the P365-380 grip and magazine well. Because SIG SAUER uses closely related model names across the P365 family, compatibility matters: this part is intended for the P365-380 and is not compatible with the P365X or P365XL.

The finger extension forms a small forward flare at the base of the magazine. That added surface gives the lower fingers a more complete place to rest without changing the magazine’s 10-round capacity. It can be especially useful for shooters whose little finger otherwise sits at or below the bottom edge of the compact grip. The extension is part of the magazine’s base configuration, so there is no separate sleeve to position during insertion.

Useful as a Spare or Replacement

A reliable set of magazines makes range preparation and routine maintenance easier. This factory magazine can replace a worn or damaged unit, serve as a second magazine for training, or provide another loaded magazine where lawful. Its 10-round capacity also makes it a straightforward choice for owners who prefer the standard-capacity format of the P365-380.

As with any firearm magazine, inspect the feed lips, body and base before use. Keep the magazine free of dirt, lint and excess lubricant, and follow the firearm manufacturer’s maintenance guidance. Confirm that the magazine locks securely into the unloaded pistol and drops free as expected before relying on it. Magazine-capacity and shipping rules vary by location, so buyers should verify current local requirements before ordering.

Key Features

• Factory SIG SAUER magazine for the P365-380 Micro-Compact
• Chambering: .380 ACP
• Capacity: 10 rounds
• Steel magazine body with black finish
• Integrated finger extension for additional grip support
• Not compatible with P365X or P365XL models
• Manufacturer part number: 8900715
• UPC: 798681655717

This listing includes one magazine. Verify the firearm model and caliber markings before purchase; the similar appearance and naming of P365-family magazines do not make them interchangeable across every P365 configuration.