svg-arrow-prev svg-arrow-next
Hover over image to zoom

CZ 455/457 3 Round Mag Extension

(66 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 457 mag extension

    Posted by Robert M on Jan 23rd 2024

    With a lot of nrl22 stages requiring 12rds, these are a must have. The fit and function of the A.O.D. extensions has been the best of the ones I've tried. Highly recommend these.

  • Must Have Mag Extension

    Posted by Iggy on Jan 20th 2024

    A great had on to your magazine, just wish I knew out these years ago. FYI, watch the video to install to give yourself the advantage and knowhow. Very easy to install, and very happy with this product. I'd recommend to any CZ fan.

  • 3 rd extension for 10 rd mag

    Posted by Rich V on Jan 17th 2024

    Works great! Added 3 more rounds o my 10 rd mag. Follow the instruction and the main spring sits great.

  • Mag extension

    Posted by bill irwin on Jan 1st 2024

    Works great on 5 rd mag, makes the small mag easier to handle
    Easy install

Write a Review

Questions & Answers

Shipping & Returns

Warranty Information

Lifetime warranty information available at

Related Products