Promag Sig Sauer P365-380 Handgun Magazine Black .380 ACP 30/rd

The Promag Sig Sauer P365-380 Handgun Magazine in Black .380 ACP is a 30-round drum magazine engineered for high-capacity backup and range training with the compact P365 .380 ACP platform. This American-manufactured drum expands your mag pool significantly beyond factory single-stack capacity, delivering extended trigger time between reloads on the range or providing substantial reserve firepower in defensive scenarios.

Construction centers on heat-treated steel with a phosphate-finished upper magazine tower paired to a proprietary DuPont Zytel-based polymer lower drum housing—a proven materials strategy that balances corrosion resistance in duty carry environments with reliable polymer performance under thermal and mechanical stress. The injection-molded follower and heat-treated stainless steel spring are engineered to feed .380 ACP with consistency across thousands of cycles. The drum configuration maintains a compact footprint relative to its 30-round capacity, though shooters should verify holster and grip-frame compatibility before field deployment, as drum magazines alter magazine profile compared to single-stack designs.

This magazine suits range shooters seeking high-volume training capacity without frequent mag changes, competition shooters running P365-380 platforms, and operators building backup mag loadouts. The .380 ACP caliber delivers lower recoil and softer handling than larger centerfire rounds, making extended drum-fed strings more controllable during skill development. Promag's USA manufacture ensures domestic supply chain consistency and supports domestic production standards.

Drum magazines function best when seated firmly and regularly cycled during use—static storage can cause spring compression issues over extended periods. Field testing with your specific P365-380 sample before critical use is standard protocol among operators transitioning to high-capacity drum configurations.