Glock 43X / 48 Magazine – S15 Gen 3 Starter Kit 15 Round – Steel Mag Catch Included
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The Shield Arms S15 Gen 3 Starter Kit is a slimline-capacity upgrade package for Glock 43X and Glock 48 pistols. You get one 15 round steel magazine plus the matching steel magazine catch, which matters because these magazines are designed around Shield Arms steel catch use rather than the factory polymer catch.
This kit makes the most sense for the buyer who wants to step into the S15 system without guessing what extra part is needed. It keeps the slim profile of the 43X/48 platform while adding capacity over the OEM 10 round setup.
Fitment
- Fits Glock 43X
- Fits Glock 48
- 9mm platform
- S15 Gen 3 magazine system
Does NOT fit
- Does not fit Glock 43
- Does not fit double-stack Glock models like G19, G17, G26, or G45
- Not intended for use with the OEM polymer magazine catch
What it does
This kit upgrades a Glock 43X or 48 from the factory 10 round magazine setup to a 15 round steel magazine system while keeping a flush-fit style profile. The included steel mag catch is there to support proper engagement and reduce the wear issues that can come from pairing steel magazines with the factory plastic catch.
Why it’s worth it
This is the smart entry point for anyone wanting more onboard capacity in a slim Glock without piecing parts together one at a time. It is cleaner than buying the mag first and realizing later you still need the correct catch. Good fit for carry, range work, and anyone standardizing a 43X/48 setup around Shield Arms magazines.
Specs
- Manufacturer: Shield Arms
- Product line: S15 Gen 3 Starter Kit
- Platform: Glock 43X / Glock 48
- Caliber: 9mm
- Capacity: 15 Round
- Magazine material: Steel
- Included catch: Steel magazine catch
- Finish/color: Black / nitride-family black finish
- Made in USA
What’s included
- 1 S15 Gen 3 15 Round magazine
- 1 standard steel magazine catch
Tools needed
Basic tools for magazine catch installation. A bench block or armorer-style setup helps, but this is still a straightforward parts swap for someone who knows the platform.
Install notes
Install the included steel mag catch before running the S15 magazine. After installation, test insertion, lockup, drop-free function, and live-fire reliability with your carry or range ammo before trusting it for serious use.
Verify before you buy
Verify your pistol is a Glock 43X or Glock 48 in 9mm. Verify you are buying into the Shield Arms S15 magazine system and not trying to keep the OEM polymer mag catch in place.
⚠ 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.
Buyer is responsible for compliance with all local/state laws regarding magazine capacity.
⚠️ 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.
