Shield Arms Launches the DUAL-FIT Mag Catch for the Glock 43X and 48
Shield Arms Launches the DUAL-FIT Mag Catch: One Steel Catch for S-Series and Glock Factory 15-Round Steel Magazines
The new steel magazine catch for the Glock 43X and 48 runs Shield Arms S10, S15 and S20 magazines and Glock's factory 15-round steel magazines in the same pistol.
BIGFORK, MT – November 13, 2026 – Shield Arms today announced the DUAL-FIT Mag Catch, a steel magazine catch for the Glock 43X and Glock 48 that runs both Shield Arms S-Series magazines and Glock's factory 15-round steel magazines. Available in right-handed and left-handed versions, the DUAL-FIT replaces the company's Standard S15 Mag Catch and is now the steel catch Shield Arms makes for the 43X and 48.
One Catch, Two Magazine Families
Steel magazines need a steel catch. The 43X and 48 ship with a polymer catch that isn't compatible with steel S-Series magazines, and Shield Arms' earlier steel catches ran S-Series mags but not the factory 15-round steel magazines Glock now sells for the 43X and 48. Owners who wanted both had to pick one.
The DUAL-FIT runs both. Carry an S15, keep a factory 15-rounder in the bag, or mix them at the range, all on one catch in one pistol.
Key Features
- Fits: Glock 43X and 48, including MOS models
- Runs: Shield Arms S10, S15 and S20 magazines (all generations, with or without extensions) and Glock factory 15-round steel 43X/48 magazines
- Right- or left-handed: the right-handed version puts the button on the left side of the frame, like the factory setup; the left-handed version puts it on the right
- Steel, black nitride finish: steel on steel for long-term wear, with rounded edges to keep wear down
- One-time install: swaps in for the factory polymer catch with basic tools and no gunsmithing
- Made in the USA, backed by the Shield Arms lifetime warranty
Factory polymer magazines will run on the DUAL-FIT, but Shield Arms doesn't recommend it for regular use, since steel on polymer adds wear to the magazine over time.
"Once Glock started selling steel 15-round magazines for the 43X and 48, our customers asked us for a solution to running both mags in the same gun," said Brandon Zeider, CEO of Shield Arms. "That wasn't possible before, but with the DUAL-FIT, you can. One steel catch, both magazines, made in the USA and backed by our lifetime warranty."
In Kits and Custom Builds
The DUAL-FIT now ships in every Shield Arms kit that includes a catch, including the S15 Starter Kit (one S15 and the catch), S15 Combo Pack 1 (three S15s and the catch), and the combo packs that add extensions or a Carry Magwell. Pistols from the Shield Arms S10 Grip Chop Service and S10 custom builds now ship with a DUAL-FIT installed.
Customers already running a Standard or Premium S15 catch can keep using it with their S-Series magazines. The DUAL-FIT is the upgrade for anyone who wants to add Glock's factory 15-round steel magazines to the same pistol.
Availability
The DUAL-FIT Mag Catch is available now in black nitride, in right-handed and left-handed versions, at shieldarms.com/dual-fit-mag-catch. Installation guides are at shieldarms.com/installation.
About Shield Arms
Founded in 2017 in Bigfork, Montana, Shield Arms makes steel aftermarket magazines for Glock pistols (S-Series, Z-Series and DS-Series), magazine extensions, magwells and magazine catches, along with the patented SA-15 folding AR-15 lower and the SA-9 folding 9mm AR. Shield Arms magazine extensions and magwells are machined in Bigfork, and its magazines and catches are made in the USA. Learn more at shieldarms.com.
Media Contact: [email protected]
Glock is a registered trademark of its respective owner. Shield Arms is not affiliated with Glock, and its products are not made, approved or endorsed by Glock.
