Warne MESIG54BLK 6061-T6 Aluminum Hardcoat Anodized Black Magazine Extension for Sig P320 (Adds 5 Rounds 9mm Luger)

The Warne MESIG54BLK magazine extension for Sig P320 is a straightforward way to add capacity to your carry or duty magazine. Built from 6061-T6 aluminum with a hardcoat anodized black finish, this extension adds 5 rounds to your 9mm Luger magazines, giving you more shots on target without switching mags. If you run a P320 for concealed carry, competition, or duty work, a few extra rounds in the same footprint is always welcome.

Magazine capacity matters in real scenarios, and this extension doesn't complicate your setup—it simply bolts onto your existing P320 magazine tube. The hardcoat anodized finish resists scratches and corrosion, holding up to daily carry and rough handling. The 6061-T6 aluminum keeps weight down while delivering the durability you expect from precision-engineered components.

Whether you're running a single-stack P320 compact, full-size, or X-series variant, this Warne extension gives you a practical capacity bump without the bulk of carrying backup magazines. It's a common-sense upgrade for anyone who trusts their P320 enough to rely on it.

Key Features

• Adds 5 rounds to Sig P320 9mm Luger magazines
• 6061-T6 aluminum construction with hardcoat anodized black finish
• Corrosion and scratch-resistant coating for carry durability
• Lightweight design maintains P320 ergonomics

Specifications

Frequently Asked Questions

Will this extension work on all Sig P320 magazines?

This extension is designed for Sig P320 magazines in 9mm Luger. Confirm your magazine platform matches before ordering.

How much does the extension add to magazine length?

The product adds 5 rounds of capacity. We don't have the exact length measurement, but the extension increases the physical size of the magazine tube accordingly.

Is the black finish durable for daily carry?

Yes. The hardcoat anodized finish is engineered to resist scratches and corrosion, making it suitable for everyday carry and frequent handling.

Does this come with new magazines or just the extension?

Based on the product specifications provided, this is the extension component. Verify compatibility with your existing P320 magazines before purchase.