The Warne magazine extension is designed to increase the capacity of compatible Sig P320 9mm magazines by five rounds while maintaining a slim, ergonomic profile. Machined from 6061-T6 aluminum and finished with a hardcoat anodized gray surface, the extension offers durable corrosion resistance and a consistent tactile feel. Finger grooves and a shaped base allow for improved grip and easier magazine removal. It is intended for shooters seeking additional capacity and enhanced handling for everyday carry, range use, or competitive settings.
Key Specifications
- Compatible model: Sig P320.
- Caliber/Gauge: 9mm.
- Capacity increase: +5 rounds added to the magazine.
- Material: 6061-T6 Aluminum.
- Finish: Hardcoat Anodized (Gray).
- Construction detail: Billet 6061 T6 Aluminum.
- Product type: Accessory – Magazines.
- Finish type: Applied Finish.
- Listed weight: 0.11.
This magazine extension gives you additional capacity and a more secure purchase on the magazine without altering the firearm’s basic ergonomics. Its billet aluminum construction and hardcoat anodized finish deliver durable performance and a refined appearance that integrates cleanly with Sig P320 magazine geometry. For shooters who prioritize added rounds and improved handling in daily carry or range applications, this extension provides a simple, robust solution.





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