Pistol Magazines
Steel Pistol Magazines for Glock
More Rounds. Same Pistol.
Steel walls are thinner than factory polymer, so more rounds fit in the grip you already carry. Three series cover the Glock 43, 43X, 48, 19 and 17.
Every series runs with a steel mag catch. Here's why.
Find Your Fit · Factory vs. Shield Arms Glock 43Z9 · Z-Series 6 9 Glock 43X / 48S15 · S-Series 10 15 Glock 19DS18 · DS-Series 15 18 Glock 17DS20 · DS-Series 17 20 Factory capacity Added by Shield Arms
First Steel Aftermarket 43X/48 Mag Steel Body Spring for Life Lifetime Warranty Made in USA
Why Steel
Built Different Where It Counts
Steel Body
Thinner walls than polymer. That's where the extra rounds come from, in nearly the same footprint.
Runs Like OEM
Engineered to drop free, lock the slide back, and feed the same ammo your factory magazines do.
Hard-Wearing Finish
Corrosion-resistant finishes stand up to carry sweat, dirt and high-round-count training.
Covered for Life
A lifetime warranty against defects, plus Spring for Life: free replacement springs for as long as you own the mag.
We built the first steel-body aftermarket magazine for the Glock 43X and 48. The rest of the industry followed.
The Z-Series and DS-Series carry the same steel-body standard to the Glock 43, 19 & 17.
One Required Upgrade
Every Series Runs With a Steel Mag Catch
Shield Arms magazines are steel, and the factory Glock mag catch is polymer. We build each series to run steel on steel, so swap in the matching Shield Arms catch once. New to Shield Arms? Each Starter Kit pairs a magazine with its catch.
Which Shield Arms Magazine Fits My Glock?
Shield Arms makes steel-body aftermarket magazines in three series, each sized for a Glock platform. Each holds more rounds than the factory magazine in nearly the same footprint.
- Glock 43: Z-Series. The Z8 holds 8 rounds flush; the Z9 holds 9 at the length of a factory mag with a pinky extension.
- Glock 43X and 48: S-Series. The S15 holds 15 rounds flush, the S20 holds 20, and the S10 fits grip-chopped frames.
- Glock 19: DS-Series DS18. 18 rounds (3 over factory).
- Glock 17, 34, 45, 47 and 19X: DS-Series DS20. 20 rounds (3 over factory).
- Every series runs with a Shield Arms steel mag catch and is backed by a lifetime warranty and Spring for Life.
Questions
Pistol Magazine FAQ
Will a Shield Arms mag change how my pistol carries?
Very little. The S15 and Z8 sit flush, the Z9 matches a factory mag with a pinky extension, and the DS18 and DS20 add only a minimal amount of length.
Do I have to replace my mag catch?
Yes. Each series is built to run with a Shield Arms steel catch in place of the factory polymer catch. A Starter Kit includes the magazine and the catch.
Can I add more capacity later?
Yes. Our extension options take an S15 up to 17, 20, or 25 rounds and a Z9 up to 10 or 12 rounds. See the S-Series and Z-Series pages for more info.
What is Spring for Life?
Free replacement magazine springs for every Shield Arms magazine, for as long as you own it. See the program.
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Z9 Starter Kit for Glock 43 – Magazine + Steel Mag Catch
Everything you need to run a Z9 in your Glock® 43: one 9-round Z9 steel magazine and one black nitride steel mag catch. Made in the USA.
$49.95
DS18 Magazine for Glock 19
An 18-round steel magazine for the Glock 19, three more than factory with only a minimal increase in length. Runs with a DS-Series steel mag catch, sold separately or in the DS18 Starter Kit.
$41.95
DS18 Starter Kit for Glock 19
One DS18 18-round steel magazine and the DS-Series steel mag catch it runs on, in a Gen 3 or Gen 4/5/6 version. Three more rounds than factory in your Glock 19.
$49.95
DS20 Magazine for Glock 17
A 20-round steel magazine for the Glock 17, 34, 45, 47 and 19X, three more than factory with only a minimal increase in length. Runs with a DS-Series steel mag catch, sold separately or in the DS20 Starter Kit.
$41.95
DS-Series Standard Mag Catch for Glock 17 / 19
The steel mag catch Shield Arms DS18 and DS20 magazines run on. Fits the Glock 17, 19, 34, 45, 47 and 19X in Gen 3 or Gen 4/5/6 versions. Made in the USA.
$19.95
Premium Z-Series Mag Catch for Glock 43
Premium-grade steel magazine catch engineered exclusively for Glock 43 pistols with Shield Arms Z8 and Z9 magazines. Features extended engagement surface and enhanced knurling for superior control and reliability.
$28.95
S15 Combo Pack 1 for Glock 43X / 48
A full Glock® 43X / 48 carry setup: three S15 Gen 3 15-round steel magazines and a DUAL-FIT black nitride steel mag catch. 45 rounds, all flush. Made in the USA.
$121.95
S15 Gen 3 15-Round Steel Magazine for Glock 43X / 48
The original steel 15-round magazine for the Glock 43X and 48. The patented S15 fits 15 rounds flush in the grip, with nothing hanging below it. Extends to 17, 20 or 25 rounds. Requires a Shield Arms steel mag catch. Made in USA, with a lifetime warranty and Spring for Life.
$39.95
S20 - 20 Round Glock 43X/48 Magazine
The Shield Arms S20 is a patented 20-round steel magazine for Glock 43X/48 — the highest-capacity backup mag available for the platform. Built on the S15's staggered feed geometry in a single steel body. QPQ finish, Made in USA, lifetime warranty.
$44.95
$39.95
Z9 +3 Magazine Extension for Glock 43
Takes a Shield Arms Z9 magazine from 9 rounds to 12 in your Glock® 43, double the factory mag. Billet 6061 aluminum, black anodized, 14-coil plus-power spring included. Made in the USA.
$37.95
Z9 9-Round Steel Magazine for Glock 43
9 rounds of 9mm in a steel magazine for the Glock® 43, the same length as a factory mag with a pinky extension. Takes Z9 +1 and +3 extensions. Requires a Z-Series steel mag catch.
$37.95
Z9 Magazine Combo 1 for Glock 43 – 3 Z9 Magazines + Steel Mag Catch
A full Glock® 43 carry setup: three Z9 9-round steel magazines and the black nitride steel mag catch they run on. 27 rounds total. Made in the USA.
$112.95
DS20 Starter Kit for Glock 17
One DS20 20-round steel magazine and the DS-Series steel mag catch it runs on, in a Gen 3 or Gen 4/5/6 version. Three more rounds than factory in your Glock 17, 34, 45, 47 or 19X.
$49.95
S10 Magazine for Modified Glock 43X / 48
Patented 10-round steel magazine that sits flush in a Shield Arms grip-chopped Glock® 43X or 48. Extends to 12 or 15 rounds with S10 extensions. Requires a steel mag catch. Made in the USA.
$35.95
S15 Combo Pack 2 for Glock 43X / 48
Three S15 Gen 3 15-round magazines and an S15 +5 extension for the Glock 43X/48: carry two flush and run the third at 20.
$149.95
Z9 Magazine Combo 2
Buy a combo pack and save, this combo includes (3) Z9 magazines and (1) Z9 +1 extension.
$137.95
DS20 Combo 1 for Glock 17
Three DS20 20-round steel magazines and the DS-Series steel mag catch they run on, in a Gen 3 or Gen 4/5/6 version. A full Glock 17 setup with three more rounds per mag than factory.
$124.95
S10 +2 Pre-Installed Magazine Extension
A Shield Arms S10 magazine with the +2 extension pre-installed: 12 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
$68.95
S15 Combo Pack 3 for Glock 43X / 48
Three S15 Gen 3 15-round magazines and two S15 +5 extensions for the Glock 43X/48: carry one flush and run two at 20.
$179.95
Shield Arms S10 +2 Extension
Adds 2 rounds to the Shield Arms S10 magazine, taking it from 10 to 12. Billet 6061 aluminum with an easy-access floor plate for cleaning without removing the extension. Made in the USA.
$39.95
Z8 8-Round Flush Steel Magazine for Glock 43
8 rounds of 9mm in a steel magazine for the Glock® 43 that sits flush, the same length as the factory 6-round mag. Requires a Z-Series steel mag catch.
$36.95
Z9 +1 Magazine Extension for Glock 43
Takes a Shield Arms Z9 magazine from 9 rounds to 10 in your Glock® 43. Billet 6061 aluminum, easy-access floor plate, 12-coil plus-power spring included. Made in the USA.
$39.95
Z9 Magazine Combo 3
Buy a combo pack and save, this combo includes (3) Z9 magazines and (2) Z9 +1 extensions.
$165.95
Z9 Magazine with +1 Pre-Installed Extension for Glock 43
A Shield Arms Z9 steel magazine with the +1 extension and plus-power spring installed: 10 rounds in your Glock® 43, ready to load. Requires a Z-Series steel mag catch.
$68.95
DS18 Combo 1 for Glock 19
Three DS18 18-round steel magazines and the DS-Series steel mag catch they run on, in a Gen 3 or Gen 4/5/6 version. A full Glock 19 setup with three more rounds per mag than factory.
$124.95
S10 +5 Pre-Installed Magazine Extension
A Shield Arms S10 magazine with the +5 extension pre-installed: 15 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
$68.95
S15 Combo Pack 4 for Glock 43X / 48
Three S15 Gen 3 15-round magazines, two S15 +5 extensions and the DUAL-FIT steel mag catch for the Glock 43X and 48. Carry one flush at 15 and run two 20-round reloads; catch is right- or left-handed.
$199.95
Shield Arms S10 +5 Extension
Adds 5 rounds to the Shield Arms S10 magazine, taking it from 10 to 15. Billet 6061 aluminum with an easy-access floor plate for cleaning without removing the extension. Made in the USA.
$39.95
Standard Z-Series Mag Catch for Glock 43
Engineered steel magazine catch designed specifically for Glock 43 pistols and optimized for Shield Arms Z8 and Z9 magazines. Features ambidextrous design with a low-profile textured button ideal for concealed carry applications.
$9.95
Z9 Magazine Combo 4
Buy a combo pack and save, this combo includes (3) Z9 magazines, (2) Z9 +1 extensions and (1) standard magazine catch.
$184.95
S15 +10 Magazine Extension for Glock 43X / 48
Takes a Shield Arms S15 magazine from 15 to 25 rounds in the Glock 43X/48. Billet 6061 aluminum with a 15-coil power spring and easy-access floor plate.
$39.95
S15 Combo Pack 5 for Glock 43X / 48 – 5 Magazines
Five S15 Gen 3 15-round steel magazines for the Glock® 43X and 48, in black Nitrocarb. 75 rounds, all flush. Requires a Shield Arms steel mag catch, sold separately.
$189.95
Replacement Spring for Z9 Magazine
Replacement Spring for Z9 Magazine - Premium quality product with superior construction and reliable performance.
$2.95
S15 +2 Magazine Extension for Glock 43X / 48
A billet aluminum +2 extension that takes a Shield Arms S15 magazine from 15 to 17 rounds in the Glock 43X/48. The 11-coil plus-power spring is included.
$34.95
S15 +2 Pre-Installed Magazine Extension
Save time with our factory pre-installed S15 +2 Magazine Extension featuring 17+1 capacity for Glock 43X/48. Precision-machined aluminum construction with lifetime warranty and Spring for Life guarantee.
$68.95
S15 Combo Pack 6 for Glock 43X / 48 – 10 S15 Gen 3 Magazines
Ten S15 Gen 3 15-round steel magazines for the Glock® 43X and 48, in black Nitrocarb. 150 rounds, all flush. Requires a Shield Arms steel mag catch, sold separately.
$294.95
$249.95
Replacement Spring for Z9 Magazine (5 Pack)
Replacement Spring for Z9 Magazine (5 Pack) - Premium quality product with superior construction and reliable performance.
$13.95
S15 +5 Magazine Extension for Glock 43X / 48
A billet aluminum +5 extension that takes a Shield Arms S15 magazine from 15 to 20 rounds in the Glock 43X/48. The 12-coil power spring is included. Your S15 runs on a Shield Arms steel mag catch.
$39.95
S15 +5 Pre-Installed 20-Round Magazine for Glock 43X / 48
Our patented S15 Gen 3 magazine with the +5 extension and a 12-coil power spring pre-installed. Holds 20 rounds of 9mm in the Glock 43X and 48 and arrives ready to load. Remove the extension and swap the spring to carry it flush at 15. Requires a Shield Arms steel mag catch. Made in USA.
$74.95
S15 Combo Pack 7 for Glock 43X / 48
Three S15 Gen 3 15-round steel magazines plus one +5 and one +2 extension for the Glock® 43X and 48. Run 15, 17 and 20. Requires a Shield Arms steel mag catch, sold separately.
$184.95
Z-Series Dual Mag Kit for Glock 43 – Z8 + Z9 + Steel Mag Catch
One Z8 8-round flush magazine, one Z9 9-round magazine and the steel mag catch they both run on. Carry 8 flush, reload with 9. Made in the USA.
$59.95
S15 Combo Pack 8 for Glock 43X / 48
Three S15 Gen 3 magazines with S15 +5 extensions pre-installed, plus the DUAL-FIT steel mag catch, for the Glock 43X and 48. 20 rounds each, ready to load; catch is right- or left-handed.
$199.95
S15 Combo Pack 9 for Glock 43X / 48
Three S15 Gen 3 magazines with S15 +2 extensions pre-installed, plus the DUAL-FIT steel mag catch, for the Glock 43X and 48. 17 rounds each with minimal added length; catch is right- or left-handed.
$194.95
Premium S15 Steel Mag Catch for Glock 43X/48
Premium hand-specific steel mag catch for Shield Arms S15 magazines. Enhanced ergonomics with extended knurling, beveled edges for smooth reloads, and increased magazine engagement. Not compatible with OEM magazines. Select left or right hand. Made in USA, lifetime warranty.
$36.95
S15 Magazine GEN 3 With Grip Chop Sleeve
Our patented 15-round S15 Gen 3 steel magazine, packaged with a Grip Chop Sleeve for a better grip on Shield Arms grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
$49.95
S15 Magazine Grip Chop Sleeve
Slides onto a Shield Arms S15 magazine to restore full grip length in an S10 grip-chopped Glock® 43X or 48. Designed for Gen 3 S15s and works with S15 +2, +5 and +10 magazines. Made in the USA.
$8.95
S15 Magwell Combo 1 for Glock 43X / 48
The complete Glock® 43X / 48 upgrade: three S15 Gen 3 15-round steel magazines, a DUAL-FIT black nitride steel mag catch, and a black Carry Magwell. Made in the USA.
$188.95
S15 Magwell Combo 2 for Glock 43X / 48
Three S15 Gen 3 15-round steel magazines, one S15 +5 extension, one DUAL-FIT black nitride steel mag catch, and a black Carry Magwell for the Glock® 43X / 48. Carry 15, reload with 20. Made in the USA.
$224.95
S15 Magwell Combo 3 for Glock 43X / 48
Three S15 Gen 3 15-round steel magazines, one S15 +2 extension, one DUAL-FIT black nitride steel mag catch, and a black Carry Magwell for the Glock® 43X / 48. 17 rounds with only a little added length. Made in the USA.
$220.95
S15 Starter Kit for Glock 43X / 48
Everything you need to run an S15 in your Glock 43X or 48: one S15 Gen 3 15-round steel magazine and a DUAL-FIT black nitride steel mag catch. Made in the USA.
$44.95
DUAL-FIT Mag Catch for Glock 43X / 48
Steel mag catch for the Glock 43X and 48 that runs Shield Arms S-Series magazines and Glock’s factory 15-round steel magazines on one catch. Black nitride, made in the USA. Pick the hand you shoot with. Right-handed puts the button on the left side of the frame, under your right thumb, like a factory 43X/48. Left-handed puts it on the right side. SPECIAL LAUNCH PRICE!
$19.95
$14.95
Glock® 33 Round Magazine for G17/34
Glock® 33 Round Magazine for G17/34 - Premium quality product with superior construction and reliable performance.
$34.95
OEM Glock G43X/48 10 Round Magazine
OEM Glock G43X/48 10 Round Magazine - Premium quality product with superior construction and reliable performance.
$21.95
![[S15-ALU-BAS-BLK] S15 +0 Aluminum Base Plate (Black)](https://shieldarms.com/images/thumbs/0000128_s15-0-aluminum-base-plate_360.webp "[S15-ALU-BAS-BLK] S15 +0 Aluminum Base Plate (Black)")
S15 Magazine Replacement Plastic
Replacement plastic parts for the Shield Arms S15 magazine - all generations.
Select from 'Gen 1' OR 'Gen 2 & 3' options.
$3.95
Replacement Spring for S15 Magazine
Replacement Spring for S15 Magazine - Premium quality product with superior construction and reliable performance.
$2.95
Replacement Spring for S15 Magazine (3 Pack)
Replacement Spring for S15 Magazine (3 Pack) - Premium quality product with superior construction and reliable performance.
$7.95
Replacement Spring for S15 Magazine (5 Pack)
Replacement Spring for S15 Magazine (5 Pack) - Premium quality product with superior construction and reliable performance.
$13.95
