Glock 19/23 - Magazine Extension - +3/+2 or +5/4 (Black)
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Warne built these Glock 19/23 magazine extensions for shooters who want more capacity, better magazine handling, and a cleaner setup than the usual bargain-bin nonsense. These black aluminum extensions are made for factory Glock 19 and Glock 23 magazines and give you a practical capacity bump without getting sloppy on fit or feel.
Available options are organized below under Variants.
Fitment
Fits factory Glock 19 and Glock 23 magazines. The +3/+2 version adds 3 rounds to 9mm Glock 19 magazines or 2 rounds to .40 S&W Glock 23 magazines. The +5/+4 version adds 5 rounds to 9mm Glock 19 magazines or 4 rounds to .40 S&W Glock 23 magazines. These extensions are designed around factory magazine bodies, not random mystery parts from the parts bin.
Does NOT fit
Does not fit Glock 17/22, Glock 26/27, Glock 43X/48, PMAG variants, or other non-matching Glock magazine patterns. Do not assume “close enough” in gun parts. That mindset buys returns. Compatible with factory Glock 19/23 magazines only.
What it does
These magazine extensions increase capacity while also improving magazine manipulation. Warne’s design adds finger grooves for a more secure grip and easier stripping, plus a more substantial base to help with reload handling and control.
Why it’s worth it
If you run a Glock 19 or 23 hard, this is the kind of upgrade that actually earns its keep. More rounds, better grip on the mag, cleaner reloads, and durable aluminum construction beat flimsy plastic add-ons all day. The +3/+2 version is the more practical everyday choice. The +5/+4 version makes more sense for range work, competition use, or anyone who wants maximum capacity from the same magazine body.
Specs
- Fits: Factory Glock 19 and Glock 23 magazines
- Color: Black
- Material: Aluminum / 6061-T6 aluminum
- Finish: Hardcoat anodized / Type II hardcoat anodized
- Retention: Torx head screw and washer
- Made in the USA
- +3/+2 model: adds +3 rounds in 9mm or +2 rounds in .40 S&W
- +5/+4 model: adds +5 rounds in 9mm or +4 rounds in .40 S&W
What’s included
Magazine extension assembly. The +5/+4 model is confirmed to include a new spring. Retailer listings for the +3/+2 model also indicate included extension components.
Tools needed
A Torx driver is needed for installation and retention hardware.
Install notes
Install on the correct factory magazine body, secure the retention hardware properly, and function test feeding, lockback, and magazine seating before carry or match use. The +5/+4 version is listed by Warne as meeting USPSA 141.25mm legal length.
Verify before you buy
Verify your exact pistol model, magazine type, caliber, and your local/state magazine-capacity laws before purchase. These are capacity-changing parts, and that means your state may suddenly develop feelings.
Buyer is responsible for compliance with all local/state laws regarding magazine capacity.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
⚠ 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.
