Description
The Warne PMAG +5 is a straightforward capacity extension for your standard 30-round Magpul PMAG magazines in 5.56 NATO or .223. It takes your mag from 30 to 35 rounds without adding significant bulk, making it ideal when you want a little extra on tap without switching to a different magazine altogether.
Build and Materials
Warne machined this extension from 6061-T6 aluminum and finished it with a Type II hardcoat anodized coating. That's the same material and process used on quality AR parts, so you're getting something built to handle real use. The flat dark earth color matches most modern tactical setups and standard Magpul furniture. Unlike some extensions out there, this one doesn't require special tools or parts to install, and the hardcoat finish resists wear from magazine pouches and repeated handling.
Design and Usability
What sets this extension apart is the thought put into how you actually use it. The ergonomic shape and finger grooves make it easier to strip the magazine from your mag well in a hurry. When you're loading fast at the range or in a drill, those grooves give you purchase without fumbling. The profile is compact enough that you won't notice much additional length, which is worth something if you ever run prone or need mags to sit in tight spots.
What to Expect
This extension bolts straight onto your existing PMAG 30 in place of the factory base pad. Installation is quick and straightforward. With good quality control, Warne extensions have earned a solid reputation for reliability with both 5.56 and .300 Blackout loads. Once it's on, you're essentially doubling down on what already works about Magpul magazines – solid design, consistent feeding, and durability.
Key Specifications
- Manufacturer: Warne Mfg
- Model Number: 5003
- UPC: 656813113149
- Capacity Increase: +5 rounds
- Compatible Magazines: PMAG 5.56-223 30-round
- Material: 6061-T6 Aluminum
- Finish: Type II Hardcoat Anodized
- Color: Flat Dark Earth (FDE)
- Magazine NOT Included: Extension only
What’s Included
- Warne PMAG +5 magazine extension (magazine not included)
Frequently Asked Questions
Do I need any special tools to install the Warne PMAG +5 extension?
No special tools are needed. This extension is designed to drop into place of your standard PMAG base pad. Simply remove the factory base pad and slide on the Warne extension. Installation takes just a few seconds.
Will the Warne extension work with my Gen 2 or Gen 3 PMAGs?
This extension is designed for PMAG 5.56-223 30-round magazines. Check your magazine to confirm the caliber marking, as extensions for different calibers won't fit properly. The design is compatible with Gen 2 and later PMAG variants in the 5.56 platform.
Does the added weight affect how the magazine feeds?
The extra weight from the aluminum extension doesn't negatively impact feeding reliability. In fact, some users find the added weight helps magazines drop free more smoothly during reloads. The extension maintains the same internal geometry, so feeding remains consistent.
Can I get the full +5 capacity, or do I need to compress the spring too much?
The Warne extension is designed to provide the full +5 rounds without excessive spring compression that would compromise reliability. You should be able to load 35 rounds total, though hand-loading the last round or two will feel snug just like any extended mag would.




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