The Warne magazine extension is designed for SIG P320 9mm magazines and adds five rounds of capacity. It is machined from 6061-T6 aluminum billet and finished with a black Type 2 hardcoat anodized coating.

Its ergonomic shape supports magazine insertion, while integrated finger grooves can assist with removing the magazine when needed.

Key Specifications

• The extension fits SIG P320 magazines.
• It is designed for 9mm magazines.
• The extension adds 5 rounds of capacity.
• The component is machined from 6061-T6 aluminum billet.
• The finish is black Type 2 hardcoat anodized.
• The coating is specified for abrasion and corrosion resistance.
• Retention uses a Torx-head screw and washer.
• The extension is designed and made in the USA.

With durable aluminum construction, a secure retention system, and a practical ergonomic profile, this extension provides a straightforward way to configure compatible SIG P320 9mm magazines for increased capacity.