Glock 19 Magazine Extension – +5 Round – Black Aluminum
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Agency Arms built this +5 magazine extension for standard Glock 19 15-round magazines when you want more capacity without turning the setup into a mystery science project. It uses aluminum construction, a black anodized finish, and an included magazine spring to support the added capacity.
This is a clean range, training, and PCC-friendly upgrade for compatible Glock 19-pattern magazines. Just don’t order it for a 10-round restricted magazine and then blame the universe. The universe is innocent this time.
Fitment
- Fits standard Glock 19 15-round magazines
- Manufacturer/retailer fitment also commonly lists Glock 23 and Glock 33 magazine compatibility
- Capacity increase is listed as +5 rounds for 9mm Glock 19 magazines
Does NOT fit
- Does NOT fit Glock 19 10-round magazines
- Do not assume fitment on reduced-capacity, blocked, aftermarket, or ban-state magazine bodies
- Not a complete magazine; this is a magazine extension/basepad assembly
What it does
This extension replaces the factory basepad on a compatible Glock 19 magazine and increases usable capacity while giving the magazine a longer base for handling, reloads, and one-handed manipulation.
Why it’s worth it
Agency Arms basepads are popular because they add capacity without looking like an afterthought. The aluminum body gives it a more durable, finished feel than cheap plastic extensions, and the included spring matters because extra capacity without proper spring support is how reliability gremlins get invited to dinner.
Specs
- Brand: Agency Arms
- Product type: Magazine extension/basepad
- Capacity increase: +5 rounds for compatible 9mm Glock 19 magazines
- Material: Aluminum / 6061 aluminum
- Finish: Black anodized / hard anodized
- Spring: Chrome silicon alloy spring listed by retailers
- Made in USA listed by retailers
What’s included
- Magazine extension/basepad
- Extended magazine spring
Install notes
- Unload the magazine completely before installation.
- Check that the spring, follower, and extension seat correctly before loading.
- Function-test the magazine with your carry or range ammo before trusting it.
Verify before you buy
- Verify your magazine is a standard Glock 19 15-round magazine.
- Verify your local magazine-capacity laws before ordering.
- If your magazine is a 10-round restricted body, this is the wrong part.
⚠ 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.
