Description
The factory magazine release on a SIG MPX is small and can be a stretch to reach when you're moving fast. Odin Works built this extended release to fix exactly that. It gives you a longer, contoured paddle that's easy to find and press without shifting your hand off the grip, so your reloads stay smooth and your sights stay closer to where they need to be.
What Sets the Odin Works MPX Extended Magazine Release Apart
This one is fully ambidextrous, so it works the same whether you run the gun right or left handed. The paddle is CNC machined from aircraft-grade aluminum and finished in black anodizing, which keeps it lightweight, tough, and resistant to corrosion after plenty of range days. The whole assembly, including the button, paddle, and screws, weighs in at right around a tenth of an ounce, so you're not adding any noticeable heft to the rifle.
Installing the SIG MPX Extended Mag Release
Installation is a true drop-in job with no gunsmithing or permanent modifications required. It replaces the OEM SIG release using the same hardware pockets, and most folks have it swapped in a few minutes with basic tools. Odin Works even put out a walkthrough video showing the process step by step. One tip that comes up a lot from owners: backing the mag catch lever out about a turn from stock helps dial in the feel and makes the release even easier to work.
Fitment and Everyday Feel
The contoured face has a positive depression that reduces slip, and the texturing gives your finger solid purchase even with gloves on. It's designed for the SIG MPX first and foremost, and it also fits the Gen3 MCX and the SIG 716i. If you're building out an MPX for competition, home defense, or just want a cleaner reload, this is one of those small upgrades that makes a real difference every time you drop a mag. Odin Works backs it with a lifetime warranty and builds it right here in the USA.
Key Specifications
- Manufacturer: Odin Works
- MPN: ACC-MPX-MR-BLK
- UPC: 857116007320
- Model: MPX
- Color: Black
- Finish: Black Anodized
- Material: Aircraft-Grade Aluminum
- Configuration: Ambidextrous
- Installation: Drop-In
- Weight: 0.15 oz (button, paddle, and screws)
- Compatibility: SIG MPX, Gen3 MCX, SIG 716i
- Length: 5.15 in
- Country of Origin: USA
What’s Included
- Odin Works MPX extended magazine release paddle
- Magazine release button
- Mounting screws
Frequently Asked Questions
Will the Odin Works MPX extended magazine release fit anything besides the SIG MPX?
It's built primarily for the SIG MPX, but it also fits the Gen3 MCX and the SIG 716i. It is not designed for standard AR-15 lowers, so if that's what you're running, you'll want Odin Works' AR-specific extended release instead. Always confirm your exact model before ordering.
Is this MPX magazine release hard to install?
Not at all. It's a straight drop-in replacement for the factory SIG release with no gunsmithing or permanent modification needed. Most people have it installed in just a few minutes with basic tools, and Odin Works offers a video that walks you through the whole process.
Is the extended mag release ambidextrous?
Yes, it's fully ambidextrous, so it functions the same whether you shoot right or left handed. You can drop a magazine from either side of the rifle without changing your grip. That flexibility is a big part of why folks upgrade from the smaller stock release.
What is the paddle made of and how durable is it?
It's CNC machined from aircraft-grade aluminum and finished with black anodizing, which makes it lightweight and highly resistant to corrosion. The contoured, textured face gives you a solid grip even with gloves on. Odin Works also backs it with a lifetime warranty against defects.





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