Warne SIG P320 9mm Magazine Extension +5 – Black Aluminum

The Warne SIG P320 9mm Magazine Extension adds five rounds to factory SIG Sauer P320 9mm magazines, extending capacity without compromising reliability or fit. Machined from aircraft-grade aluminum with a Type III hard anodized black finish, this extension provides a secure grip surface and increased magazine capacity for range work, competition, or home defense applications.

Designed specifically for SIG P320 9mm magazines, the extension installs with the factory magazine spring and follower—no additional components required. The aluminum construction is lightweight yet durable, and the hard anodized finish resists wear and corrosion. Textured grip surface ensures positive handling during reloads.

• Type: Magazine extension
• Compatibility: SIG Sauer P320 9mm magazines
• Capacity Increase: +5 rounds
• Material: Aircraft-grade aluminum, Type III hard anodized
• Finish: Black
• Installation: Uses factory magazine spring and follower
• Use: Increases magazine capacity for range, competition, or personal defense