Glock 43X/48 – Shield Arms S15 Gen 3 15-Round Magazine
PLEASE DOUBLE CHECK DETAILS, CALIBER, FITMENT, CAPACITY LAWS, MAG CATCH REQUIREMENTS, AND SHIPPING RESTRICTIONS BEFORE PURCHASE.
The Shield Arms S15 Gen 3 is a flush-fitting 15-round steel magazine for Glock 43X and Glock 48 pistols. It keeps the same overall footprint as the factory 10-round magazine while adding five rounds of capacity.
Important: Shield Arms recommends using their steel magazine catch with S15 magazines. Steel mags against a plastic OEM mag catch can cause wear, poor retention, or drop-free issues. Steel on steel, plastic on plastic — don’t mix parts and then blame the moon.
Finish Options
| Finish | SKU | Notes |
|---|---|---|
| Nickel / Silver | MGSA-S15-N-GEN3 | Electroless nickel finish |
| Black Nickel | MGSA-S15-BLKN-GEN3 | Black nickel finish |
Fitment
- Fits Glock 43X.
- Fits Glock 48.
- Flush-fit 15-round steel magazine.
- Same overall length as the OEM 10-round Glock 43X/48 magazine per Shield Arms.
- Requires Shield Arms steel magazine catch for optimal function per Shield Arms.
Does NOT Fit
- Does not fit Glock 43.
- Does not fit Glock 17, 19, 26, 34, or 45.
- Do not use with the factory plastic mag catch if you want the setup Shield Arms recommends.
- Does not include firearm, magazine catch, ammunition, loader, or magwell.
Specs
- Brand: Shield Arms
- Model: S15 Gen 3
- Type: Pistol magazine
- Caliber: 9mm
- Capacity: 15 rounds
- Fitment: Glock 43X / Glock 48
- Material: Steel
- Profile: Flush fit
- Base Pad: Easy-remove impact-resistant base pad
- Made in USA with Shield Arms lifetime warranty / Spring for Life guarantee per manufacturer listing
Verify Before You Buy
- Confirm your pistol is a Glock 43X or Glock 48.
- Confirm 15-round magazines are legal where you live.
- Install a Shield Arms steel mag catch for the setup Shield Arms recommends.
- Expect extra wear or drop-free issues if using steel S15 mags with the OEM plastic mag catch.
- Function test every magazine with your actual ammo before carry or defensive use.
Disclaimers
⚠️ LEGAL DISCLAIMER
Don’t be that guy ordering 30-round mags in ban states. We don’t ship to restricted zones unless you’ve got the paperwork and Odin’s blessing. You’ve been warned.
Note on Shipping
⚠️ High-capacity magazine laws suck, and unfortunately this item cannot ship to CA, CO, CT, DC, HI, IL, MA, MD, NJ, NY, RI, WA, VT, or other restricted states. Adult signature required where applicable.
Buyer is responsible for knowing and following all local, state, and federal magazine-capacity laws before ordering.
⚠ Glock Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by Glock, Inc. or Glock Ges.m.b.H.
All references to GLOCK® are used solely to identify firearm models, parts compatibility, and fitment information for customers. Glock is a federally registered trademark of Glock, Inc. and Glock Ges.m.b.H.
Any product sold on this site referencing Glock is aftermarket, not OEM, and is not manufactured by Glock. Glock does not warranty, authorize, or guarantee the performance, safety, or reliability of any third-party components or modifications.
Firearm parts should be installed by a qualified armorer or gunsmith. Improper installation, modification, or use of aftermarket components may affect firearm safety, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, function testing, and use of their firearm and accessories.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.