Description
Five more rounds per magazine is not a small thing. Whether you are running stages or just want more capacity on your G17, the Odin Works PMB (Pistol Magazine Base) is one of the cleaner ways to get there. It replaces the factory base pad on your Glock 17 magazine and adds a full +5 rounds of 9mm capacity without pushing past the 140mm USPSA gauge limit. That means you can run it at a match without any headaches.
Odin Works CNC machines the PMB right in Boise, Idaho out of 6061-T6 billet aluminum, then hard anodizes it for a finish that holds up to heavy use. At 1.5 oz for the base and screw, the added weight is working in your favor. The profile is shaped to sit flat and flush in your palm, giving you a confident grip point when stripping a mag under pressure. The weighted base also helps mags fall free clean and fast when you hit that release button.
Reliability was clearly on the design checklist. The PMB ships with an upgraded extra power spring to keep feeding consistent with the additional capacity, along with Odin Works' proprietary threaded push-pin that locks everything in place securely. An Allen wrench is also included so you are ready to install right out of the box with no trips to the toolbox needed.
This specific base is designed for full-size Glock 17 (9mm) magazines. If you run a Glock 22 in .40 S&W, there is also a compatible version available. Bottom line, if you want to add meaningful capacity to your G17 mags with a quality piece of American-made aluminum hardware, the Odin Works PMB gets the job done.
Key Specifications
- Manufacturer: Odin Works
- Model: PMB (Pistol Magazine Base)
- MPN: ACC-PMB-GLOCK-17-BLK
- UPC: 857116007924
- Capacity Increase: +5 rounds
- Compatible Firearm: Glock 17 (9mm full size)
- Material: 6061-T6 billet aluminum
- Finish: Hard anodized, black
- Weight: 1.5 oz (base and screw)
- Dimensions: 1.7" x 1.23" x 1.37" at widest points
- USPSA Gauge Compliant: Yes, within 140mm limit
- Country of Origin: USA (Boise, ID)
- Color: Black
What’s Included
- PMB magazine extension base
- Extra power magazine spring
- Proprietary threaded push-pin
- Allen wrench
Frequently Asked Questions
Will the Odin Works PMB work with Glock 17 Gen 5 magazines?
The PMB is designed to fit Glock 17 full-size 9mm magazines. Gen 5 Glock 17 magazines use the same body dimensions as earlier generations, so the PMB is compatible. If you have any doubt, it never hurts to check with Odin Works directly, but this is one of the more commonly asked questions and compatibility has not been an issue.
Is this magazine extension USPSA legal?
Yes, the Odin Works PMB is designed to stay within the 140mm overall magazine length limit required for USPSA competition. This was clearly a priority in the design, making it a legitimate competition upgrade rather than just a range toy.
How difficult is it to install the PMB on a Glock 17 magazine?
Installation is pretty straightforward. The PMB includes the extra power spring, threaded push-pin, and an Allen wrench, so you have everything you need right in the box. The key is to take your time disassembling the factory base pad and follow the steps carefully to avoid any damage to the magazine body.
Does the extra weight of the PMB affect how the magazine drops free?
The added weight actually works in your favor here. The weighted base design helps magazines drop free cleanly and consistently when you release them, which is part of why this extension appeals to competition shooters who need fast, reliable reloads.
What is the total round capacity when using the Odin Works PMB on a standard Glock 17 magazine?
The standard Glock 17 magazine holds 17 rounds of 9mm. With the Odin Works PMB installed, that goes up to 22 rounds. Combined with the weighted base for faster reloads, that is a meaningful upgrade for both competition and range use.





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