Mec-Gar MGG172005A Glock 17 20rd Extended 9mm Luger, Black Carbon Steel w/Flat Dark Earth Floorplate

The Mec-Gar MGG172005A is a 20-round extended magazine purpose-built for Glock 17 pistols chambered in 9mm Luger. If you run a G17 for duty, competition, or home defense and want more rounds on tap without swapping magazines, this is the upgrade that actually works. The extended capacity sits flush enough for practical carry while the flat dark earth polymer floorplate provides a distinctive look and helps you identify your mags at a glance.

Built with a heat-treated carbon steel tube and high-tensile music wire spring, this magazine is engineered to feed reliably through thousands of rounds. The anti-friction coating keeps things running smooth, and the high-visibility green follower lets you track your round count at a glance. The key trade-off with extended mags is handling and concealment—that extra length changes how the gun sits in a holster—but for range sessions, competition, or situations where capacity matters more than discretion, the 20-round count is a real advantage.

One thing to know: this magazine ships with a proprietary Mec-Gar floorplate, and standard Glock replacement basepads won't swap on. It's not compatible with Stealth Arms Platypus holster systems. If you're building a Glock 17 setup and want more ammo in the gun with no magazine catch modifications needed, drop this one in and go.

Key Features

• 20-round capacity for Glock 17 9mm Luger
• Heat-treated carbon steel construction for durability
• Anti-friction coating for smooth feeding
• High-visibility green follower for quick round-count reference
• Flat dark earth polymer floorplate
• No firearm modification required—fits standard Glock 17 magazine well
• High-tensile music wire spring for consistent performance

Specifications

Frequently Asked Questions

Will this magazine work in my Glock 17 without any modifications?

Yes. The Mec-Gar MGG172005A is a drop-in magazine for Glock 17 pistols. No modification to your firearm's magazine catch is necessary.

Can I swap the floorplate with a standard Glock basepad?

No. This magazine uses a proprietary Mec-Gar floorplate, and standard Glock replacement basepads are not compatible. The flat dark earth floorplate is part of the design.

Is this magazine compatible with Stealth Arms Platypus holsters?

No, this magazine is not compatible with Stealth Arms Platypus holster systems.

What caliber is this magazine for?

This magazine is chambered for 9mm Luger and is designed exclusively for the Glock 17.