Description
This is an OEM-quality magazine purpose-built for the Magnum Research Desert Eagle chambered in 50 Action Express. Made by Check-Mate Industries, the same company that supplies Magnum Research with factory magazines, it delivers the durability and reliability you need for range work or as a backup mag.
The construction centers on through-hardened carbon steel with a black oxide finish that resists corrosion while keeping the mag lightweight and easy to manage. Inside, you'll find a proprietary spring design that sets Check-Mate apart from other manufacturers, paired with a polymer follower and removable steel floorplate for easy maintenance. Witness holes on the left side let you count your rounds at a glance without unloading.
With a 7-round capacity matching the factory standard for 50 AE, this magazine feeds reliably and fits your Desert Eagle the way it was designed to. Whether you're stocking up spares for the range, keeping one loaded for serious use, or just maintaining your collection, this is the magazine to grab.
Key Specifications
- Brand: Check-Mate Industries
- Manufacturer Part Number: MAG-50
- UPC: 850020492145
- Caliber: .50 Action Express (50 AE)
- Capacity: 7 rounds
- Construction: Through-hardened carbon steel
- Finish: Black oxide
- Follower: Polymer
- Floorplate: Removable steel
- Compatibility: Magnum Research Desert Eagle Mark XIX
- Features: Witness holes for round count verification
- Spring Design: Proprietary Check-Mate design
- Made In: USA
- Warranty: Lifetime factory warranty
- Weight: 0.23 lbs
Frequently Asked Questions
Will this magazine work with other Desert Eagle calibers?
This magazine is designed specifically for the 50 AE Desert Eagle. Check-Mate makes separate magazines for 44 Magnum and 357 Magnum that hold 8 and 9 rounds respectively. If you own a Desert Eagle in another caliber, you'll need the corresponding magazine for that caliber.
Is this a factory OEM magazine?
Yes. Check-Mate Industries is the OEM manufacturer for Magnum Research Desert Eagle magazines. This is the same quality magazine that ships with new Desert Eagle pistols, so you're getting the real deal when you order from Check-Mate.
How durable is the black oxide finish?
Black oxide is a proven finish that provides solid corrosion resistance and a clean look. It's not as hard as stainless steel but holds up well to normal use and regular cleaning. If you store your mags long-term, keep them dry and the finish will last.
Can I use this magazine with the 429 DE barrel?
Yes. The 429 DE shares the same bolt and magazine as the 50 AE, so this magazine feeds both calibers when you swap barrels on your Desert Eagle.
What's the point of the witness holes?
The witness holes on the side let you quickly see how many rounds are loaded without emptying the magazine. This is handy at the range to keep track of your ammo count or verify you're topped off.
Is this magazine new or used?
This is a new magazine manufactured to factory specifications. As an OEM product, every unit goes through Check-Mate's quality control before it ships.





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