Glock 19/23/32 Magazine Extension – Cross Armory +5 Round – Gen 1–5
PLEASE DOUBLE CHECK DETAILS, MAGAZINE FITMENT, CAPACITY LAWS, MAGWELL CLEARANCE, AND FUNCTION BEFORE PURCHASE OR USE.
The Cross Armory +5 Magazine Extension is built for compatible Glock 19, Glock 23, and Glock 32 Gen 1–5 magazines. It replaces the factory magazine base plate and adds five additional rounds to compatible Glock-brand or Glock-clone magazine bodies.
This extension is CNC-machined from aircraft-grade aluminum and weighs about 1.35 ounces, keeping the profile slim, light, and usable without turning the bottom of the magazine into a boat anchor. Cross Armory designed it with aggressive grip cuts, an upgraded feeding spring, and a compact shape they state works with all magwells and holsters.
Capacity is great. Capacity that still feeds right is the part that keeps range day from becoming a troubleshooting seminar.
Variants / Options
- Black
- Blue
- Gold
- Purple
- Red
- Silver
Fitment
- Fits compatible Glock 19 Gen 1–5 magazines.
- Fits compatible Glock 23 Gen 1–5 magazines.
- Fits compatible Glock 32 Gen 1–5 magazines.
- Adds 5 rounds to compatible standard-capacity Glock-brand or Glock-clone magazine bodies.
- Cross Armory states the compact shape works with all magwells and holsters, but real-world clearance should still be verified with your exact setup.
Does NOT Fit / Do Not Guess Magazine Fitment
- Magazine body is not included.
- Does not fit Glock 17, Glock 22, Glock 31, Glock 34, or Glock 45 magazines. Use the correct Cross Armory extension for that magazine family.
- Does not fit Glock 43, Glock 43X, Glock 48, or slimline Glock magazines.
- Do not assume fitment with Glock 19X magazines unless your exact extension and magazine body are specifically verified.
- Do not use the Glock 19/23/32 extension as a substitute for the Glock 17/22/31/45 version. The larger-frame magazine spring setup is different.
- Do not assume fitment with reduced-capacity, blocked, restricted, damaged, modified, or non-standard magazine bodies.
- Do not order if your state or local law restricts magazine capacity or magazine-extension parts.
Magazine Extension Fit Guide
| Magazine Body | Capacity Increase | Included Spring | Main Check |
|---|---|---|---|
| Glock 19 Gen 1–5 compatible magazine | +5 Round | Yes | Use only with compatible standard-capacity magazine bodies |
| Glock 23 Gen 1–5 compatible magazine | +5 Round | Yes | Verify magazine body and local capacity laws |
| Glock 32 Gen 1–5 compatible magazine | +5 Round | Yes | Function test after installation before serious use |
Note: Magazine extensions must be tested after installation. Capacity, spring tension, follower movement, magazine body condition, ammunition, and base pad installation can all affect feeding reliability.
What It Does
This extension replaces the factory magazine base plate and adds five rounds of capacity to compatible Glock 19, Glock 23, and Glock 32 magazines. The included upgraded spring is designed to support feeding from the first round through the last round after the extension is installed.
Why It’s Worth It
A good magazine extension should add capacity without becoming bulky, unreliable, or annoying to handle. This one keeps the profile tight, adds usable grip texture, and includes the spring needed to help the added capacity work properly.
The aggressive grip cuts are useful when stripping or handling magazines with wet hands, gloves, or dirty range conditions. Capacity without reliability is just decoration with consequences. Pretty decoration, maybe. Still consequences.
Specs
- Brand: Cross Armory
- Part type: Magazine extension / extended base pad
- Platform: Glock 19 / 23 / 32 Gen 1–5 compatible magazines
- Capacity increase: +5 Round
- Material: CNC-machined aircraft-grade aluminum
- Weight: About 1.35 oz
- Color options: Black, Blue, Gold, Purple, Red, Silver
- Spring: Upgraded feeding spring included
- Profile: Compact low-profile shape
- Grip feature: Aggressive grip cuts / True Grip-style handling surface
- Install note: Cross Armory recommends red Loctite to secure the screw permanently after installation
- Magazine body included: No
What’s Included
- One Cross Armory +5 Magazine Extension in the selected color
- One upgraded magazine spring
- Installation hardware as provided by the manufacturer package
Note: Magazine body, firearm, ammunition, tools, magazine pouch, holster, and other accessories are not included unless your exact SKU/package states otherwise.
Tools Needed
- Basic magazine disassembly tool or punch
- Appropriate driver for the retention screw
- Red Loctite, as recommended by Cross Armory
- Safety glasses
Install Notes
- Unload the firearm completely and remove all ammunition from the work area before working on any magazine.
- Disassemble the compatible magazine body before installing the extension.
- Install the extension with the included upgraded magazine spring.
- Secure the retention screw according to Cross Armory’s install guidance.
- Cross Armory recommends using red Loctite for permanent screw retention.
- After installation, verify follower movement, spring tension, base pad retention, seating, drop-free behavior, feeding, and lockback.
- Live-fire test before relying on the magazine for serious use.
Verify Before You Buy
- Verify your magazine is for a Glock 19, Glock 23, or Glock 32 Gen 1–5 compatible setup before ordering.
- Verify the magazine body is a compatible standard-capacity Glock-brand or Glock-clone magazine body.
- Verify this +5 Round extension is legal in your state, county, and city before purchase.
- Verify your aftermarket magwell, magazine body, or base plate setup does not create fitment or seating issues.
- Buyer is responsible for compliance with all local and state laws regarding magazine capacity.
Legal, Shipping & Compatibility Disclaimers
```⚠ Magazine Capacity Legal Notice
Magazine capacity restrictions vary by state, county, and city. Buyer is responsible for knowing and following all applicable laws before purchase. We do not ship magazine extensions or magazine-related capacity parts to restricted jurisdictions unless legally permitted with proper documentation where applicable. Adult signature may be required where applicable.
⚠ Shipping Restriction Notice
This item may be restricted in jurisdictions that regulate magazine capacity, magazine extensions, or magazine conversion parts. Orders shipping to restricted locations may be cancelled, blocked, or require legal documentation before shipment.
⚠ 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, magazine 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 magazines, extensions, components, or modifications.
Firearm parts and magazine components should be installed and used responsibly. Improper installation, modification, magazine extension use, spring changes, or aftermarket components may affect firearm safety, reliability, feeding, seating, drop-free function, and void manufacturer warranties. By purchasing and installing third-party magazine parts, the buyer assumes all responsibility for safe handling, installation, legal compliance, compatibility verification, function testing, and use of their firearm and accessories.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer, gunsmith, or knowledgeable user. Buyer is responsible for verifying compatibility, correct installation, spring orientation, follower movement, magazine retention, feeding reliability, seating, drop-free behavior, lockback, live-fire validation, legal compliance, and safe operation.
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