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
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.
