Promag Sig P365 380acp 30rd Drum Blk

The ProMag 30-round drum magazine for Sig P365 .380 ACP gives you serious capacity in a compact platform. If you run a P365 in .380 and want to maximize rounds downrange without multiple reloads, this drum steps up where standard single-stack mags leave off. Built with heat-treated steel and a reinforced polymer lower housing, it's engineered to handle extended firing sessions at the range or in training scenarios where volume matters.

The drum design pairs a steel magazine body with a proprietary DuPont Zytel polymer lower section—a proven material combo that balances durability and weight. The heat-treated stainless steel spring and injection-molded follower are built to cycle reliably through all 30 rounds without binding or chatter. Made in the USA, it carries the kind of straightforward construction you'd expect from ProMag's lineup.

Fit is direct to the Sig P365 .380 ACP, so verify your pistol's caliber and model before ordering. Drum magazines require a bit more attention than traditional single-stack mags—keep the spring and follower clean, and store it loaded or unloaded depending on your preference (both work fine with quality drums). If you're building a dedicated .380 training or competition setup, this gives you the capacity boost without swapping to a different platform.

Key Features

• 30-round capacity for Sig P365 .380 ACP
• Heat-treated steel magazine body with phosphate finish
• Proprietary DuPont Zytel polymer lower drum housing for durability and weight savings
• Heat-treated stainless steel spring for consistent feeding
• Injection-molded follower
• Made in the USA

Specifications

Frequently Asked Questions

Will this fit my Sig P365?

Yes—this drum magazine is designed specifically for the Sig Sauer P365 chambered in .380 ACP. Double-check your pistol's caliber markings before purchasing, as .380 ACP magazines are not interchangeable with other P365 variants.

What's the difference between a drum magazine and a standard mag?

Drum magazines hold significantly more rounds in a compact footprint—in this case, 30 rounds versus the typical 10-12 in a single-stack .380 mag. The tradeoff is slightly more width and rotational loading, but the capacity boost is ideal for training, competition, or high-volume range sessions.

Is this magazine reliable?

ProMag drums use proven materials: heat-treated steel body, stainless steel spring, and injection-molded followers. The combination is designed for consistent feeding. Like all drum magazines, proper maintenance—keeping the spring and follower clean—ensures reliable operation.

What's included?

You receive the 30-round drum magazine. Magazine followers and springs are integrated; no additional parts are needed to use it with your P365 .380 ACP.