Glock Double-Stack 9mm Magazine – Magpul PMAG GL9 – 17/21/27 Round Black
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The Magpul PMAG GL9 series gives Glock double-stack 9mm shooters a tough polymer magazine option in 17, 21, and 27-round capacities. These are built for full-size, compact, and subcompact double-stack Glock 9mm variants, with extended-capacity options protruding below the grip.
The 17-round version is the clean full-size setup. The 21-round version meets 140mm competition magazine length requirements. The 27-round version meets 170mm competition magazine length requirements. Pick your capacity, verify your laws, and don’t order like a raccoon with Wi-Fi.
Available Capacities
- 17 Round — standard full-size Glock 17 capacity.
- 21 Round — extended capacity, 140mm competition-length magazine.
- 27 Round — extended capacity, 170mm competition-length magazine.
Fitment
- Fits most double-stack Glock 9mm handguns.
- 17-round version is built around Glock 17-size magazine fitment and may protrude below compact or subcompact grips.
- 21-round and 27-round versions are compatible with full-size, compact, and subcompact double-stack Glock 9mm variants, with protrusion below the grip.
- Also listed by Magpul for Glock-pattern/Ruger RXM compatible double-stack 9mm platforms where applicable.
- Magpul notes the PMAG 17 GL9 may not be compatible with the Glock 19X without modification due to the lip on the grip’s front strap.
Does NOT Fit
- Not for Glock 43, Glock 43X, or Glock 48 single-stack/slimline pistols.
- Not for .40 S&W, .357 SIG, .45 ACP, 10mm, or other non-9mm Glock pistols.
- Not for non-Glock-pattern magazine systems.
- Not for restricted states or jurisdictions where 17, 21, or 27-round magazines are prohibited.
What It Does
- Provides 17, 21, or 27-round capacity options for compatible double-stack Glock 9mm pistols.
- Uses durable all-polymer PMAG construction.
- Includes a high-visibility controlled-tilt follower.
- Uses a stainless steel spring for long service life.
- Features indicator windows for quick round-count checks.
- Includes an easily removable floorplate for cleaning.
- Paint-pen dot matrix allows magazine marking and load identification.
Why It’s Worth It
OEM Glock mags are great, but Magpul GL9 mags give shooters a useful, affordable, and proven alternative — especially when you want extra range mags, training mags, or extended-capacity options without bolting on expensive basepad extensions. Simple gear that works. Beautifully boring, as reliability should be.
Specs
- Brand: Magpul Industries
- Model: PMAG GL9
- Magazine Type: Pistol magazine
- Caliber: 9x19mm / 9mm Luger
- Capacity Options: 17 Round, 21 Round, 27 Round
- Platform: Double-stack Glock 9mm pattern
- Material: Polymer body with stainless steel spring
- Follower: High-visibility controlled-tilt follower
- Color: Black
- Finish Options: Black only
Verify Before You Buy
- Verify your pistol accepts double-stack Glock-pattern 9mm magazines.
- Verify your selected capacity is legal in your state and local jurisdiction.
- Expect 21-round and 27-round magazines to extend below the grip.
- For Glock 19X owners, verify compatibility before ordering because Magpul notes possible fitment issues with the 17-round GL9 due to the front-strap lip.
- Buyer is responsible for compliance with all local/state laws regarding magazine capacity.
Disclaimers
⚠ Glock Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by Glock, Inc. or Glock Ges.m.b.H.
All references to GLOCK® are used solely to identify firearm models, parts compatibility, and fitment information for customers. Glock is a federally registered trademark of Glock, Inc. and Glock Ges.m.b.H.
Any product sold on this site referencing Glock is aftermarket, not OEM, and is not manufactured by Glock. Glock does not warranty, authorize, or guarantee the performance, safety, or reliability of any third-party components or modifications.
Firearm parts should be installed by a qualified armorer or gunsmith. Improper installation, modification, or use of aftermarket components may affect firearm safety, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, function testing, and use of their firearm and accessories.
Buyer is responsible for compliance with all local/state laws regarding magazine capacity.
⚠️ LEGAL DISCLAIMER
Don’t be that guy ordering 30-round mags in ban states. We don’t ship to restricted zones unless you’ve got the paperwork and Odin’s blessing. You’ve been warned.
Note on Shipping
⚠️ High-capacity magazine laws suck, and unfortunately this item cannot ship to CA, CO, CT, DC, HI, IL, MA, MD, NJ, NY, RI, WA, VT, or other restricted states. Adult signature required where applicable.
