9 Rounds in a Glock 43? NEW Shield Arms Z9 Magazine Review

James Reeves
by James Reeves

In this episode of TFBTV, James Reeves reviews the new Shield Arms Z9 magazine for the Glock 43. Adding less than a half-inch of length to the G43, the Shield Arms Z9 magazines increase the Glock 43’s magazine capacity by 50%, with 9 rounds of 9mm instead of the 6 rounds provided by the factory magazine. Magazines are a critical piece of equipment: Are these Shield Arms Z9 mags reliable, or even worth your attention? James tests them out in today’s video.

According to Shield Arms’ Website:

The Z9 magazine is a 9 round magazine for the Glock® 43. The Z9 is a steel magazine, and is the same length as the OEM Glock® magazine with pinky extension, but holds an additional 3 rounds.

Increased Capacity, Same Reliability
Glock® pistols and magazines are known for reliability – the Z9 maintains that same Glock® reliability, while giving you a 50% increase in magazine capacity in the same overall footprint.

We accomplished this increased capacity with our patent-pending magazine geometry, allowing the rounds to stagger, thereby fitting more in the same amount of space.

Proudly made in the USA by Check-Mate.

Mag Catch Recommendation
We recommend swapping out your plastic OEM mag catch with either our standard steel mag catch or our premium steel mag catch. Here’s why. If you don’t swap your mag catch you may have reliability issues. If you use another manufacturer’s mag catch you may have reliability issues.

9 round capacity
Same length as an OEM Glock 43 magazine with pinky extension
Easy to remove, impact resistant base pad
High lubricity finish, Black Oxide coating
Made in the USA
Finish Options
Powercron is a cationic epoxy coating that offers excellent corrosion resistance and low VOC in a lead-free film electrocoat surface finish. If you are in a humid or salt water environment, or if you sweat a lot, we recommend Powercron, Electroless Nickel, or Black Electroless Nickel finish.

Note: because we have multiple Powercron vendors, there may be slight cosmetic variations in the finish. This is cosmetic only and does not affect performance. If you are concerned about a “matching” finish from mag to mag, you might be happier with one of the electroless nickel finishes.

Like all Shield Arms products, our S15 magazine comes with our 100% lifetime warranty against manufacturing defects. Additionally, we also offer a Spring for Life Guarantee – wear out your spring, get a new one for free, for life.

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James Reeves
James Reeves

Owner, Neutral Ground Gun Co. NRA/Louisiana State Police certified concealed weapons instructor, 2012-present Maxim Magazine's MAXIMum Warrior, 2011 TFBTV Executive Producer Champion, Key West Cinco De Mayo Taco Eating Competition Lawyer Instagram: gunshorts Twitter: @jjreeves

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4 of 19 comments
  • Deadeye Dan Deadeye Dan on May 15, 2022

    I have yet to understand the current market's hyper focus on these marginal capacity increases. Ever since the P365 dropped, it seems like everyone jumped into this dick measuring contest of who has the best capacity/size ratio. Obviously, capacity is clearly important to a lot of people to support this trend, but here, I wonder how many current Glock 42 owners are really going to spend an extra $110 for the steel mag release and two mags just to have nine in a mag vs seven with the stock pinky extension mag.

    • See 1 previous
    • Andrew Andrew on May 17, 2022

      @Beju Its not that I thing the G43 is better than anything in particular, its that I already have one.

  • Tim Tim on May 15, 2022

    I'll sticker with the Tango Down/Vickers +2 extensions for $14.