MAG SHIELD FITS GLOCK 19 +5/4 EXT BK

Description

The Shield Arms Glock 19 extended magazine gives shooters who carry or train with the G19 a straightforward path to more rounds without changing pistols. It starts with a factory Glock 19 OEM magazine body, so fit and feed reliability reflect the same tolerances Glock built into the platform from the start. The extension itself is machined from 6061 aluminum billet and finished with a Type 2 anodize, giving it corrosion resistance and a hard surface that holds up to the friction of repeated insertions and removals without adding meaningful weight to the package.

The floor plate design is worth noting: you can access the spring and follower without pulling the extension off the magazine body first. That matters during cleaning and maintenance, where fiddling with a stubborn base plate while trying to keep small parts contained is a real inconvenience. Here it’s a deliberate part of the design rather than an afterthought. The extension also ships with a +10% power spring, which compensates for the added stack height and helps ensure consistent feeding across all 20 rounds. Shield Arms backs the assembly with a lifetime warranty and a Spring for Life replacement guarantee on the spring itself.

This magazine fits the Glock 19 and Glock 23 frames. If you run a Shield Arms steel magazine release — which is often paired with aluminum Shield Arms magazines to reduce wear — that compatibility carries over here as well.