Warne Mag Ext For Glk 17/22 +5/4 De
Warne
$44.99
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Warne
Warne Mag Ext For Glk 17/22 +5/4 De
The Warne Magazine Extension for Glock 17/22 adds up to 5 rounds (4 for .40 S&W) to your standard magazine capacity, delivering a reliable, American-made upgrade built from premium aircraft-grade aluminum for duty, competition, or home defense use.
- Adds +5 rounds to 9mm Glock 17 magazines or +4 rounds to .40 S&W Glock 22 magazines
- Machined from 6061-T6 aircraft-grade aluminum billet for exceptional strength and durability
- Type 2 hardcoat anodize finish resists abrasion, corrosion, and everyday wear
- Ergonomic profile with finger grooves for positive grip and reliable mag stripping
- Torx head screw and washer retention system ensures a secure, rattle-free fit
- Designed and manufactured entirely in the USA to rigorous quality standards
Who This Is For
This magazine extension is ideal for competitive shooters looking to gain an edge in USPSA or 3-Gun matches, as well as Glock 17 and Glock 22 owners who want more rounds on tap for home defense or range training. It's a smart, no-compromise upgrade for anyone who demands reliable, high-quality gear machined to precise tolerances — not a polymer afterthought.
Specifications
| Brand | Warne |
|---|---|
| Compatible Pistols | Glock 17 (9mm), Glock 22 (.40 S&W) |
| Capacity Increase | +5 rounds (9mm) / +4 rounds (.40 S&W) |
| Material | 6061-T6 Aluminum Billet |
| Finish | Type 2 Hardcoat Anodize – Desert Earth (DE) |
| Retention | Torx Head Screw with Washer |
| Country of Origin | USA |
| Series | Build-a-Mag |
| Part Number | RPLWRM3113 |
Frequently Asked Questions
Will this magazine extension fit both Glock 17 and Glock 22 magazines?
Yes. The Warne Mag Extension is specifically designed to fit standard Glock 17 (9mm) and Glock 22 (.40 S&W) double-stack magazines. Due to the difference in cartridge size, it provides a +5 round increase for 9mm magazines and a +4 round increase for .40 S&W magazines. It is not cross-compatible with other Glock models without verifying magazine footprint compatibility.
Is this magazine extension legal to use in California?
California restricts magazine capacity to 10 rounds. If your base Glock 17 or Glock 22 magazine combined with this extension would exceed 10 rounds total, it may not be compliant for use in California. Warne does offer zero-capacity extension models designed specifically for use with 10-round magazines in restricted states. Please verify your total loaded capacity before purchase and consult current state regulations.
How difficult is it to install the Warne magazine extension?
Installation is straightforward for most users comfortable with basic firearm maintenance. The extension attaches to the base of your existing Glock magazine using a Torx head screw and washer, which securely locks the extension in place without permanent modification. A Torx driver is required for installation. No gunsmithing experience is necessary, and the process typically takes just a few minutes.
