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.
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Availability: In stock
$194.95
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Buy now, pay later Available at checkout on orders over $150
Compatibility

Fits the Glock® 43X and 48. The Steel Catch Is Included.

This combo fits the Glock® 43X and 48, all generations. The S15 is a steel magazine, and the polymer mag catch the pistol ships with isn't compatible with it, so the combo includes our DUAL-FIT steel catch, right- or left-handed. Every magazine ships at 17 rounds. Capacity laws vary by state and city; check yours before you order.

What Is the S15 Combo Pack 9?

S15 Combo Pack 9 is three 17-round magazines for the Glock® 43X and 48, ready to load out of the box: three Shield Arms S15 Gen 3 steel magazines with black S15 +2 extensions and 11-coil plus-power springs already installed, plus the DUAL-FIT steel mag catch they run on, right- or left-handed. That's 51 rounds across three magazines, with only a little added length on each. The magazines are made in the USA and the extensions are machined in Bigfork, Montana, with a lifetime warranty and Spring for Life.

  • In the combo: (3) S15 +2 Pre-Installed mags, (1) DUAL-FIT catch
  • Fits: Glock® 43X and 48, all generations
  • Capacity: 17 rounds per magazine, 51 total
  • Catch: right- or left-handed, your choice
A Little More, Still Compact

Two More Rounds. Barely More Mag.

The S15 is the magazine that put Shield Arms on the map: 15 rounds, flush, in the slim Glock® 43X and 48. Our +2 is the smallest S15 extension: it takes the mag to 17 while adding far less length than a +5.

Combo Pack 9 puts a +2 on all three magazines for you, springs installed, so you swap the catch once, load up and go. That makes 17 a realistic carry mag as well as a reload. Want one flush later? Swap it back to a standard S15 spring and base plate, and it carries at 15.

3 S15 Gen 3 magazines
17 Rounds per magazine
51 Rounds across three
USA Made, with Spring for Life
In the Combo

Three Extended Mags and the Catch

  • Three S15 Gen 3 Mags

    Steel bodies built on our patented staggered geometry, in a black Nitrocarb (QPQ) finish.

  • +2 Extensions, Installed

    Billet 6061 aluminum, black anodized, machined in Bigfork, Montana. Fitted with 11-coil plus-power springs.

  • DUAL-FIT Mag Catch

    Black nitride steel, right- or left-handed. Also runs Glock®'s factory 15-round steel mags. Made in the USA.

  • Easy-Access Floor Plate

    Clean or service the magazine without pulling the extension. Index cuts help you strip it from a pouch.

One Magazine, Four Sizes

Every S15 Size. These Three Hold 17.

The S15 carries 15 flush, and each extension adds a size: 17 with the +2, 20 with the +5, 25 with the +10. All three mags in this combo ship at 17.

Want three pre-installed 20s instead? See Combo Pack 8. Capacity laws vary by state and city. Check yours before you buy.

S15Flush   15 S15 +2In this combo    17 S15 +5Extension    20 S15 +10Extension    25   S15, flush   Added by extension
Why a Steel Catch

Steel Mags Run on a Steel Catch

The S15 is steel and the catch your 43X/48 shipped with is polymer, and the two aren't compatible. This combo includes our DUAL-FIT steel catch, which also runs Glock®'s factory 15-round steel mags. It's a one-time install, and our installation guides walk you through it. Another manufacturer's catch may cause reliability issues.

Install Guides DUAL-FIT Catch
Compare

Pick Your Setup

Every kit below includes the steel catch. Pick the magazine and extension mix that fits how you carry.

Kit S15 Mags Steel Catch Extensions
S15 Combo Pack 9 (this page) 3 ✓ 3 × +2, installed
S15 Combo Pack 8 3 ✓ 3 × +5, installed
S15 Starter Kit 1 ✓ —
S15 Combo Pack 1 3 ✓ —
S15 Combo Pack 4 3 ✓ 2 × +5

Want a faster reload? Add a Carry Magwell. See all S-Series combos.

Specifications

In the combo (3) S15 Gen 3 magazines with S15 +2 extensions and 11-coil plus-power springs installed, (1) DUAL-FIT steel mag catch
Compatible pistols Glock® 43X and 48, all generations
Capacity 17 rounds of 9mm per magazine, 51 total
Magazine body S15 Gen 3, steel, patented staggered geometry; the +2 adds a little length below the 43X/48 grip
Magazine finish Black Nitrocarb (QPQ nitrocarburized) only
Extensions S15 +2, installed; billet 6061 aluminum, black Type II anodized, 11-coil plus-power spring, easy-access floor plate, index cuts; fits S15 Gen 2 and Gen 3
Mag catch DUAL-FIT steel catch, black nitride, right- or left-handed; also runs Glock® factory 15-round steel mags
Magwells Works with Shield Arms Carry and Premium magwells for the 43X/48, and most aftermarket flared magwells
Made in USA; extensions machined in Bigfork, Montana
Warranty Lifetime warranty plus Spring for Life on the magazines and extensions

All Black

This combo comes in one look: black Nitrocarb magazines, black anodized extensions and a black nitride DUAL-FIT catch, right- or left-handed. Want other magazine finishes? Combo Pack 4 offers Nitrocarb, Silver Nickel or Black Nickel.

Black
Questions

S15 Combo Pack 9 FAQ

Which pistols does it fit?

The Glock® 43X and 48, all generations. For the single-stack Glock® 43, see the Z-Series. For the Glock® 19 and 17, see the DS-Series.

Do I need anything else?

No. The extensions and springs are already installed, and the combo includes the DUAL-FIT catch every magazine runs on. Pick right-handed (button on the left side of the frame, like the factory setup) or left-handed when you order.

Can I turn one back into a flush 15?

Yes. Remove the extension, swap the 11-coil spring for a standard S15 spring, and reinstall a flush base plate. Keep each extension's spring with it if you swap back later.

How hard is the catch install?

It's a one-time swap with basic tools and no gunsmithing. Our installation guides walk you through it.

Can I carry a 17-round S15?

Yes. The +2 adds the least length of any S15 extension, so a 17 can work as a carry mag as well as a reload. If you want nothing below the grip, carry a flush S15.

Will the catch run Glock®'s factory 15-round mags?

Yes. The DUAL-FIT also runs Glock®'s factory 15-round steel 43X/48 magazines, so you can mix them with your S15s.

Will my polymer 10-round mags still work?

They'll run with the steel catch, but we don't recommend it for regular use. Steel on polymer adds wear to the magazine over time.

+2 or +5?

The +2 holds 17 and adds the least length, so it can stay a carry mag. The +5 holds 20 and makes a bigger reload. Want three pre-installed 20s? See Combo Pack 8.

Does it work in a grip-chopped pistol?

Yes. A 43X or 48 converted by our S10 Grip Chop Service runs these magazines; the +2 adds two rounds below the chopped grip.

What is Spring for Life?

Free replacement springs for as long as you own your S15s and extensions. See the program.

What's covered?

A lifetime warranty against defects in materials and workmanship, plus Spring for Life on the magazines and extensions.

Related

Build Out Your 43X / 48

S15 +2 Pre-Installed Add a fourth 17 DUAL-FIT Mag Catch Add one for a second pistol Carry Magwell Faster reloads, low profile S15 Magazine A flush carry mag S20 Magazine 20 rounds, one piece S15 Combo Pack 8 Three 20s, pre-installed

See the whole lineup on the S-Series page.

ODA Green

Used on: magazine extensions, magwells

ODA's (Operational Detachment Alpha) are the boots on the ground operational teams of a Special Forces Group. This color began as a special run for a deployed ODA. In continued support we have decided to continue the color as a standard offering and donate a portion of the proceeds to The Green Beret Foundation. Finish is anodized in green.

QPQ Nitrocarburizing Surface Treatment

Used on: magazines, barrels, slides

QPQ Nitrocarburizing is a type of surface treatment used to enhance the durability and corrosion resistance of metal parts. The process involves heating the metal in a controlled environment, where nitrogen and carbon are introduced to the surface of the metal. This forms a thin layer of a hard compound called "nitrides," which increase the surface hardness of the metal.

During the QPQ Nitrocarburizing process, the metal is immersed in a special salt bath and heated to high temperatures. The salt bath contains a mixture of chemicals that release nitrogen and carbon, which penetrate the surface of the metal. The process is carefully controlled to ensure that the nitrogen and carbon penetrate to a specific depth, creating a uniform layer of nitrides on the metal's surface.

The resulting nitride layer provides many benefits to the metal parts, including increased hardness, wear resistance, and corrosion resistance. This treatment helps to increase the lifespan and durability of metal parts, making them more reliable and long-lasting.

Any “scuffing” you see in the surface finish is completely normal, and will not affect the durability or corrosion resistance of the steel.

Electroless Nickel Plating

Used on: magazines

Silver electroless plating offers superior electrical conductivity and corrosion protection with excellent deposit uniformity and adhesion properties. This bright, reflective finish provides outstanding solderability and contact resistance while maintaining the consistent thickness and coverage that electroless plating processes are known for. Black electroless nickel plating provides these same exceptional deposit properties - including lubricity, hardness, and corrosion resistance - but with a fully conductive and uniform black surface finish that combines superior performance with an attractive dark appearance.

Products specifications
Firearms Manufacturer Glock
Firearms Model Glock 43X/48
Installation Help

Not sure how to install this product? Our step-by-step guides and video walkthroughs make it simple.

View Installation Guides →
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