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Shield Arms S15+5 Pre-Installed Magazine Extension - Glock 43X/48
Shield Arms S15 +5 Pre-Installed Magazine Extension – Glock 43X/48 is an extended magazine dedicated to Glock 43X/48 pistols. Thanks to the +5 extended base pad, you get a total capacity of 20 rounds, allowing for longer and more comfortable shooting sessions without frequent magazine changes.
Shield Arms S15 +5 Pre-Installed Magazine Extension – Glock 43X/48 is an extended magazine dedicated to Glock 43X/48 pistols. Thanks to the +5 extended base pad, you get a total capacity of 20 rounds, allowing for longer and more comfortable shooting sessions without frequent magazine changes.
The S15 Generation 3 magazine features an improved wear-resistant coating and a modified, stamped surface on the rear portion—ensuring better seating of the magazine in the grip. On both sides of the magazine, there are three witness holes indicating 5, 10, and 15 rounds, allowing for a quick check of your remaining ammunition.
The manufacturer recommends using the dedicated, ambidextrous steel magazine release (S15 Mag Catch). Using a metal magazine with the factory plastic (polymer) release can lead to premature wear, resulting in feed issues or improper slide operation. A metal mag catch is not fully recommended for use with Glock’s polymer magazines, as it accelerates their wear and can make magazine removal more difficult.
If you have the older, aluminum Generation 1 mag catch and want to fully utilize S15 magazines, you should also consider upgrading to a steel version to avoid unwanted malfunctions and to maximize the potential of Shield Arms extended magazines.
Product Features
- Dedicated magazine for Glock 43X/48 pistols
- Unique floor plate design enabling maintenance or cleaning of the magazine body without removing the extension
- Indexing serrations on the extension, improving grip when removing the magazine from a pouch
- CNC-machined from solid 6061 aluminum
- Type 2 anodized finish
- +5 base pad that increases the capacity of the Shield Arms S15 Gen 3 magazine by five rounds
- Reinforced spring (12-coil plus power spring)
- Compatible with most flared mag wells on the market
- Capacity: 20 rounds
- Caliber: 9x19 mm
- Made in the USA
- Manufacturer: Shield Arms, USA
Important Notice
To use this magazine, you must replace the factory plastic (OEM) magazine catch in your pistol with the dedicated Shield Arms magazine release.
- If you do not replace your magazine catch, you may experience issues with smooth magazine changes.
- If you use a magazine catch from another manufacturer, you may also encounter reliability problems.
- Gen 2 magazines were designed to work with Shield Arms steel magazine catches.
- If you have a first-generation aluminum magazine catch, it is necessary to upgrade it to one of our steel versions.
- Pistol model
- Glock 43X
Glock 48
853465008995
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The Shield Arms S15 Magazine Catch for Glock 43X/48 was specifically designed with steel S15 magazines (Gen 1, Gen 2, and Gen 3) in mind, providing optimal compatibility and increased reliability. Made of steel and available in various finish options, it guarantees long service life and consistent performance.
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