Glock 43X/48 Magazine Extension – +4 Round – Fits OEM 10-Round Magazines
PLEASE DOUBLE CHECK DETAILS, MAGAZINE FITMENT, LOCAL LAWS, AND CAPACITY RESTRICTIONS BEFORE PURCHASE.
Tyrant CNC’s +4 magazine extension for Glock 43X and Glock 48 pistols is built for shooters who want more onboard capacity, faster reload handling, and a cleaner grab surface at the base of the magazine. This extension is designed around factory Glock 43X/48 OEM 10-round magazines and includes a higher-power spring for the added capacity.
Available finish options are organized under the product variants. This is a magazine extension only. Magazine body is not included. Small distinction, big headache if someone misses it.
Fitment
- Fits Glock 43X OEM 10-round magazines.
- Fits Glock 48 OEM 10-round magazines.
- Designed for factory Glock 43X/48 9mm 10-round magazine bodies only.
- Adds +4 rounds of 9mm capacity when properly installed with the included power spring.
Does NOT Fit
- Does not fit Glock 43 magazines.
- Does not fit double-stack Glock magazines such as G17, G19, G19X, G26, G34, G45, or G47 magazines.
- Does not fit large-frame Glock magazines such as G20, G21, G29, G30, G40, or G41 magazines.
- Do not assume compatibility with Shield Arms S15 magazines, PSA Micro Dagger magazines, aftermarket magazine bodies, or alternate base pad systems unless your exact manufacturer documentation confirms it.
- Magazine body is not included.
What It Does
This extension replaces the factory base plate and adds 4 rounds of 9mm capacity while also giving the magazine more weight for cleaner drop-free reloads and a more positive grab surface during manipulations.
Why It’s Worth It
More rounds is nice. More rounds without turning installation into a full exorcism is even nicer. Tyrant’s retention plunger design keeps install and removal simple, while the added knurling and machined profile help the mag come out and go back in like it has some manners.
Specs
- Brand: Tyrant CNC
- Product type: +4 magazine extension
- Platform: Glock 43X / Glock 48
- SKU family: TD-G48MAGEXT
- Magazine compatibility: Glock 43X/48 OEM 10-round magazines only
- Capacity increase: +4 rounds of 9mm
- Material: CNC-machined aerospace-grade aluminum
- Product weight: 1.3 oz / 36 grams
- Dimensions listed by manufacturer: 41mm x 25.2mm x 38mm
- Install style: Tool-free retention plunger system
- Spring: Includes new 10% power spring
- Finish: Anodized / coated finish by selected variant
- Made in USA: Yes
What’s Included
- One Tyrant CNC +4 magazine extension in the selected finish
- One new 10% power spring
Note: Magazine body, ammunition, firearm, and other accessories are not included.
Install Notes
Tyrant’s retention plunger system is designed for fast install and removal. After installation, confirm positive lockup, full magazine seating, reliable feeding, drop-free function, and proper last-round behavior before carry or live-fire use.
Verify Before You Buy
Verify you are using a Glock 43X or Glock 48 OEM 10-round magazine. Also verify your magwell, grip setup, holster clearance, reload technique, and all local magazine-capacity restrictions before purchase. Capacity parts are where guessing gets expensive and sometimes legally stupid.
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.
⚠ 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.
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.