Magpul PMAG GL9 10-Round 9mm Magazine for Glock 17 - Black (MAG801-BLK)

The Magpul PMAG GL9 10-round 9mm magazine for Glock 17 delivers the proven reliability and build quality of Magpul's PMAG line in a restricted-capacity design. If you're in a state or jurisdiction with magazine-capacity limits, or you're prepping magazines for a specific competition class, this isn't a compromise—it's a purpose-built alternative that gives you Magpul's reputation without the downsides of cheaper restricted-capacity options. The GL9 works with your Glock 17, and the stiff, lightweight polymer construction holds up to repeated loading cycles and hard use.

What sets this apart from generic 10-round Glock mags is the controlled-tilt follower and the dual witness holes molded into both sides of the body at the 10-round mark. You get instant visual feedback on how many rounds are loaded, which matters whether you're running a match, updating your duty load, or just staying organized at the range. The magazine also includes a paint-pen dot matrix on the body—use it to mark different loads or ammo types so you know what you're grabbing without guessing.

Magpul engineered this from the ground up as a restricted-capacity solution, not a full-size magazine artificially limited. That means it feeds smoothly, sits flush in your gun, and doesn't rattle or feel like a compromise. Whether you're a competitor adapting to local rules, a civilian living under state capacity limits, or someone who simply prefers 10-round mags, the PMAG GL9 is the furthest thing from a second-choice mag.

Key Features

• 10-round capacity for Glock 17 9mm
• Stiff, lightweight polymer construction built for durability and repeated use
• Witness holes on both sides of the magazine body at 10-rounds remaining
• Controlled-tilt follower for reliable feed and consistency
• Paint-pen dot matrix for easy load identification

Specifications

Frequently Asked Questions

Will this PMAG GL9 work with my Glock 19?

The product listing specifies compatibility with the Glock 17. For fit with a Glock 19 or other sub-compact variants, contact us or check Magpul's compatibility chart directly.

What's the witness hole for?

The witness holes molded into both sides of the magazine body at the 10-round mark let you see at a glance how many rounds are loaded. No counting required—just a quick visual check.

Can I mark different ammunition types on this magazine?

Yes. The magazine includes a paint-pen dot matrix printed on the body. Use it to mark and identify different loads or ammunition types quickly.

Is this a full-size magazine artificially limited to 10 rounds?

No. The PMAG GL9 is purpose-built as a 10-round magazine from the ground up, not a restricted version of a larger-capacity design.