PROMAG FOR GLOCK 17/19/26 MAGAZINE - 9MM - 10 ROUND CAPACITY - 20 ROUND BODY - POLYMER - BLACK

ProMag Industries
MPN:
GLK-A21
UPC:
708279015861
$31.69 - $34.69
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The ProMag Glock 17/19/26 10-Round 9mm Magazine delivers reliable, California-compliant feeding in a full-size 20-round polymer body — purpose-built for shooters who demand American-made quality without compromising on durability or function.

  • California-compliant 10-round capacity housed in a standard 20-round body
  • Compatible with Glock 17, 19, and 26 chambered in 9mm
  • Proprietary DuPont Zytel-based polymer construction for lightweight strength
  • Full-length internal steel insert, stamped and welded like the factory magazine
  • Precision-wound chrome silicon wire spring for consistent feed pressure
  • Made in the U.S.A. and backed by a lifetime manufacturer's defect guarantee

Who This Is For

This magazine is ideal for California-based Glock 17, 19, and 26 owners who need a legally compliant, dependable replacement or backup magazine. Whether you're heading to the range, building out a home-defense setup, or simply need a spare that meets state capacity requirements, this ProMag offers the reliability of a reinforced steel-insert design at an accessible price point.

ProMag Glock 17/19/26 10-Round 9mm Polymer Magazine - Black Front View ProMag Glock 17/19/26 10-Round 9mm Polymer Magazine - Black Side View

Specifications

BrandProMag Industries
Compatible ModelsGlock 17, Glock 19, Glock 26
Caliber9mm
Capacity10 Rounds (CA Compliant)
Magazine Body20-Round Profile
MaterialDuPont Zytel-Based Polymer
Internal InsertFull-Length Steel, Stamped & Welded
FollowerInjection Molded Polymer
Spring MaterialHeat-Treated Chrome Silicon Wire
ColorBlack
Country of OriginUSA
WarrantyLifetime (Manufacturer Defects)

Frequently Asked Questions

Will this magazine fit all Glock 9mm pistols, or only specific models?

This ProMag magazine is specifically designed to fit the Glock 17, Glock 19, and Glock 26 chambered in 9mm. While these three models share compatible magazine dimensions, it is always recommended to verify fitment with your specific firearm before use. It is not intended for use with Glock models chambered in other calibers.

Is this magazine truly California-legal, and what does the 10/20 designation mean?

Yes — this magazine is California-compliant. The "10/20" designation means the magazine is permanently blocked to hold a maximum of 10 rounds, but the external body is the same size as a standard 20-round magazine. This gives the magazine its full-size grip and ergonomics while meeting California's 10-round capacity limit. It is sold at Goodland Guns specifically for compliant use within the state.

How does the ProMag compare to OEM Glock magazines in terms of reliability?

ProMag magazines are engineered with a full-length internal steel insert and a heat-treated chrome silicon spring to closely replicate the structural integrity of factory Glock magazines. While OEM magazines are always a benchmark, ProMag's USA manufacturing standards and lifetime defect guarantee make this a solid aftermarket option for range training and backup use. As with any aftermarket magazine, we recommend running a full function check before relying on it for critical applications.

Caliber:
9MM
Capacity:
10/20 Round
Color:
Black
Follower Color:
Black
Type:
Pistol Magazine
CA Compliant:
Yes
Platform:
Glock 17/19/26
Material:
Polymer