ProMag DRMA36 StandardBlack DuPont Zytel Polymer Drum 30rd for 9mm Luger Sig MPX
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Promag
Promag Siga24 40Rd 9Mm Fits Sig Sauer Mpx Black Dupont Zytel Polymer
$20.55
The Promag Siga24 is a 40-round magazine purpose-built for the Sig Sauer MPX 9mm rifle. If you run an MPX and want to maximize your on-hand ammo supply without swapping mags, this polymer magazine delivers the capacity that pairs with the platform's handling. Constructed from DuPont Zytel—the same durable engineering polymer used in duty-grade gear—it's designed to withstand the rigors of the range, training, and field use.
The magazine body uses injection-molded construction for consistency, and the spring is heat-treated chrome silicon wire, the kind of materials choice that keeps a magazine reliable through thousands of rounds. It's made in the USA, which means quality control and lead times you can count on. For MPX shooters who appreciate practical capacity without breaking the bank on each reload, this is a straightforward option that handles the job.
At 40 rounds, you'll want to verify your storage and transport setup—magazine cases and pouches are your friends with extended-capacity mags—but the real upside is fewer mag changes at longer training sessions or in a vehicle setup. The black polymer finish is clean and durable, and the profile should work with standard MPX mag carriers.
Key Features
- 40-round capacity for Sig Sauer MPX 9mm
- DuPont Zytel polymer construction for durability and reliability
- Heat-treated chrome silicon wire spring
- Injection-molded magazine follower for consistent feeding
- Made in USA
- Black finish
Specifications
| Capacity | 40 rounds |
| Caliber | 9mm |
| Firearm Compatibility | Sig Sauer MPX |
| Material | DuPont Zytel polymer |
| Finish | Black |
| Manufacture | USA |
Frequently Asked Questions
Will this magazine fit my Sig Sauer MPX?
Yes. This magazine is designed specifically for the Sig Sauer MPX 9mm rifle.
What is Zytel polymer and why does it matter in a magazine?
Zytel is a proprietary DuPont engineering polymer known for durability and temperature resistance. In magazines, it holds up to repeated loading cycles, impacts, and storage conditions better than cheaper plastics.
Is this magazine made in the USA?
Yes, the Promag Siga24 is manufactured in the USA.
What's the capacity and is it standard for the MPX?
This magazine holds 40 rounds of 9mm—that's extended capacity compared to standard MPX magazines, giving you more ammo on hand between reloads.
