Shield Arms G17ME5RED Magazine Extension for Full Size Glock - 5rd (9mm) / 4rd (40S&W), Red Aluminum

The Shield Arms G17ME5RED Magazine Extension for Full Size Glock is a red aluminum base pad that adds real capacity to your 9mm or .40 S&W magazines without the bulk of a larger frame gun. If you run a Glock 17, 19X, 34, or 45 in 9mm, this extension adds 5 rounds per mag; for .40 S&W shooters with a Glock 22 or 35, you get 4 additional rounds. It's the kind of simple upgrade that gives you more rounds downrange without changing your gun or holster fit.

Built from 6061 aluminum and Type 2 anodized in that distinctive red finish, the Shield Arms extension is machined for durability and machined-in index cuts along the body give you positive grip texture when drawing from a mag pouch. The design is thoughtful: the easy access floor plate lets you service the spring and follower without removing the extension from the magazine tube itself—useful for cleaning or maintenance in the field. It fits standard OEM Glock magazines and most aftermarket flared mag wells, so it's compatible with your existing setup.

Installation is straightforward, and Shield Arms backs this extension with their lifetime warranty and Spring for Life guarantee, so you're covered. Made in the USA, it ships with their +10% power spring, engineered to handle the extra rounds reliably.

Key Features

• Easy access floor plate design—service the magazine without disassembly
• Index cuts machined into the body for secure magazine pouch draw
• Billet 6061 aluminum, Type 2 anodized in red
• Adds 5 rounds to Glock 17/19X/34/45 (9mm) magazines
• Adds 4 rounds to Glock 22/35 (.40 S&W) magazines
• Includes Shield Arms +10% power spring
• Fits OEM Glock magazines and most aftermarket flared mag wells
• Made in the USA
• Lifetime warranty and Spring for Life guarantee

Specifications

Brand	Shield Arms
Product	G17ME5RED Magazine Extension
Caliber/Fit	9mm (Glock 17/19X/34/45) – adds 5rd; .40 S&W (Glock 22/35) – adds 4rd
Material	6061 Billet Aluminum, Type 2 Anodized
Color	Red
Compatibility	OEM Glock magazines, most aftermarket flared mag wells
Included Spring	Shield Arms +10% power spring
Origin	Made in the USA
Warranty	Lifetime warranty; Spring for Life guarantee

Frequently Asked Questions

Which Glock models does this magazine extension fit?

The Shield Arms G17ME5RED is designed for full-size Glock frames. It fits Glock 17, 19X, 34, and 45 in 9mm (adding 5 rounds) and Glock 22 and 35 in .40 S&W (adding 4 rounds). It works with OEM Glock magazines and is compatible with most aftermarket flared mag wells.

Can I service the magazine without removing the extension?

Yes. The unique easy access floor plate design allows you to remove the spring and follower for cleaning or maintenance without having to disassemble the extension from the magazine tube. This makes field maintenance and cleaning much simpler.

What spring comes with it?

The Shield Arms G17ME5RED ships with their +10% power spring, engineered to reliably handle the additional rounds the extension provides.

Will this work with my holster and mag pouches?

Yes. The extension is designed to fit standard Glock magazine dimensions and is compatible with most aftermarket flared mag wells. The index cuts machined into the body give you better grip and control when drawing from a magazine pouch.