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CZ 455/457 3 Round Mag Extension

(74 reviews) Write a Review


Increase Shooting Capacity With the CZ 455/457 Mag Extension

Whether you are going on a hunt, competing, or just having a little fun on the range, having extra ammo is always a good thing. Increase your CZ 455/457 mag capacity by three rounds with Anarchy Outdoors's extended mag.

The meticulous USA design and manufacture of this mag extension shines through with the ease of installation. Just remove the mag base plate and slide on the mag extension. Watch our installation video for step by step directions.


Note: These are only compatible with the 10 round magazines. They will not work properly on the 5 round magazines. Similarly these extensions are not compatible with the 17 HMR or the 22 WMR.


At Anarchy Outdoors, we pride ourselves in our ability to deliver high-quality, precision, and cutting-edge gear for firearm enthusiasts. All Anarchy Outdoors’ developed products come with a lifetime replacement guarantee.



Made in the USA

Customer Reviews

  • Cz 3 round ext

    Posted by Bill on Jun 25th 2024

    Product as described. Install was easy and works!

  • 3 shot extension

    Posted by David Vance on Jun 2nd 2024

    Unit was easy to install and works great.

  • Mag Extension for 457

    Posted by Pklch on May 28th 2024

    Nice product, very easy to install and works perfectly

  • CZ Mag Extension

    Posted by Big Stevie on May 16th 2024

    Shipping was fast. Part was easy to install and works like it should. Will probably buy more in the future.

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