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CZ 455/457 3 Round Mag Extension

(46 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

  • 3 shot extension

    Posted by Bladesmith on Jan 9th 2023

    Love this! Works flawlessly. Really helps on those 13 round stages!

  • 3 round mag extender

    Posted by Jim on Jan 3rd 2023

    Works beautifully! Took a little fiddling to get the spring to pop down all the way, but when it did, it works perfectly. Simple addition that add functionality and easier to snap into the Bravo mag well. Buy this!

  • Mag extension

    Posted by Douglas Sponsler on Dec 14th 2022

    Work great. Couldn’t ask for anything more.

  • 3 round extension

    Posted by sglshotkw on Nov 30th 2022

    Excellent product and easy install

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