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The Warne Magazine Extension for your Sig P320 is a straightforward upgrade that does one thing well: gives you more rounds downrange without replacing your existing magazines. It's machined from 6061-T6 aluminum billet and finished with Type 2 hardcoat anodize in black, so it'll handle the wear and tear of regular use without losing its looks.
Instead of buying entirely new magazines, this extension swaps onto your factory 17-round P320 mags to add five more rounds. The ergonomic profile includes finger grooves cut into the base pad, which makes it easier to grab the magazine during a reload or strip it from the gun if it doesn't fall free. The Torx head screw and washer hold everything in place reliably, and installation is straightforward once you get the hang of sliding it onto the magazine flange.
Warne designed this with shooters in mind. Whether you're running the P320 at the range, in competition, or for daily carry, you get the extra capacity without the bulk of a completely new magazine. The aluminum construction keeps weight down while the hardcoat anodize resists both abrasion and corrosion. Each extension comes with a new spring to ensure feeding stays consistent with the added rounds.
Fits P320 17-round factory magazines in 9mm. Designed and made in the USA. Backed by Warne's lifetime warranty with no questions asked. Installation requires removing the factory base pad and swapping in the new extension, but you'll have it done in a few minutes.
This extension is designed for Sig P320 17-round factory magazines in 9mm. It replaces the factory base pad and adds five rounds to your magazine capacity. Make sure you're using the correct factory magazine size for best compatibility.
No, this extension comes with a replacement spring included in the box. The new spring is designed to handle the added capacity and feed reliably with the five extra rounds.
Installation is pretty straightforward. You remove the factory base pad and retaining clip from your magazine, slide the new extension onto the magazine flange, and secure it with the included Torx screw and washer. Most people get it done in just a few minutes once they understand the process.
This extension is rated for 9mm magazines specifically, where it adds five rounds. While the same extension body may work on .40 S&W magazines, it will add only four rounds in that caliber due to the larger cartridge size.
| UPC | 656813107988 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 3211 |
| Brand Fit | Sig Sauer |
| Caliber/Gauge | 9mm |
| Capacity | 5 |
| Model | |
| Model Fit | Sig P320 |
| Product Type | Accessory-Magazines |
| Shipping Weight | 0.11 |
| Package Width | 1.6 |
| Length | 11.9 |
| Package Height | 1.1 |
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