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Warne SIG SAUER P320 9mm Magazine Extension +3 Rounds Black
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$34.99
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SKU: WX2*0743466
Overview
This magazine extension kit is built for SIG P320 9mm owners who want added capacity without changing the magazine platform. It replaces the existing baseplate and adds 3 rounds while keeping the magazine within USPSA 141.25mm legal length. The anodized aluminum construction and ergonomic shape are intended to make insertion, removal, and handling more comfortable during range sessions or competition use. Magazine not included.
Why Hunters Choose the Warne
Fits Sig
P320 9mm magazines for a
Adds Three
Rounds of capacity without replacing
Anodized Aluminum
Construction keeps the extension lightweight
Ergonomic Shape
Supports easier insertion, removal, and
Meets Uspsa
141.25mm legal length requirements
Key Features
- Replaces the SIG P320 magazine baseplate with a +3-round extension.
- Fits SIG P320 9mm magazines.
- Made from anodized aluminum.
- Ergonomic shape supports easier insertion and removal.
- Meets USPSA 141.25mm legal length.
- Magazine not included.
Best Used For
- SIG P320 9mm owners wanting a magazine extension for added capacity during range sessions or competition use.
- USPSA shooters needing a 141.25mm legal magazine setup with easier insertion and removal.
- Hunters or outdoorsmen carrying a SIG P320 who want a more ergonomic magazine baseplate.
- Users replacing a factory baseplate with an anodized aluminum extension kit; magazine not included.
Specifications
| Capacity Increase | +3 rounds |
|---|---|
| Color | Black |
| Country Of Origin | USA |
| Magazine Compatibility | SIG P320 9mm magazines |
| Magazine Included | No |
| Material | Anodized aluminum |
| Shape | Ergonomic |
| Uspsa Legal Length | 141.25mm |
Pros
- Fits SIG P320 9mm magazines for a direct compatibility match.
- Adds three rounds of capacity without replacing the magazine.
- Anodized aluminum construction keeps the extension lightweight and durable.
- Ergonomic shape supports easier insertion, removal, and comfortable handling.
- Meets USPSA 141.25mm legal length requirements.
- Magazine not included, so existing magazines can be upgraded individually.
Considerations & Trade-offs
- Adds +3 rounds to compatible SIG P320 9mm magazines, but the magazine itself is not included, so this is an accessory rather than a complete solution.
- It replaces the existing baseplate, so fit is limited to SIG P320 9mm magazines and is not a universal magazine extension.
- The extension is designed to meet USPSA 141.25mm legal length, which is useful for competition use but may not suit every carry or range setup.
- Anodized aluminum construction and ergonomic shaping are practical features, but they also mean this is a purpose-built upgrade rather than a low-profile factory-style baseplate.
Suggested Comparisons
- Pistol magazine extensions
- Handgun magazine baseplates
- Competition shooting accessories
- SIG P320 magazine accessories
Suggested Accessories
- Magazine cleaning brush
- Pistol magazine loader
- Spare magazine
- Range bag
Frequently Asked Questions
What magazines does this extension fit?
It fits SIG P320 9mm magazines.
How much capacity does it add?
It provides +3 rounds of capacity.
Is the magazine included?
No. The product replaces the existing baseplate, but the magazine is not included.
What is it made from?
The extension kit is made from anodized aluminum.
Does it meet USPSA length requirements?
Yes. The product states that it meets USPSA 141.25mm legal length.