Description
The Tyrant TDG42MAGEXBLACK is built to solve a real problem for Glock 42 owners: that compact single-stack mag doesn't leave much room for your hand. This extension adds two rounds to your factory magazine while fixing the grip issue at the same time.
Why the Tyrant Retention Plunger System Works
Unlike extensions that require tools or disassembly, the Tyrant system slides on without any hassle. The retention plunger holds the extension securely in place but releases quickly when you need to take it off. Installation takes about ten seconds, and removal is just as easy if you need to swap your setup or clean your magazines.
Build Quality and Performance
Machined from aerospace-grade aluminum, this extension adds just enough weight to ensure reliable magazine drops during reloads. The chamfered edges and knurled grip surface keep things controllable in any condition. At just over half an ounce, it doesn't bog down your carry gun or disrupt the balance you've spent time dialing in. The finish matches the black coating specs and holds up to regular use.
Who This Is For
If you carry a Glock 42 as a primary or backup gun, going from 6+1 to 8+1 rounds matters. The extended base pad also gives those with medium to large hands the real estate they need for a full firing grip. It works with factory Glock 42 magazines and compatible aftermarket versions, keeping your setup flexible and affordable.
Key Specifications
- Manufacturer: Tyrant CNC
- Model: TDG42MAGEXBLACK
- Manufacturer Part Number: TDG42MAGEXBLACK
- UPC: 612789319145
- Caliber Compatibility: .380 ACP
- Firearm Compatibility: Glock 42
- Capacity Increase: +2 rounds
- Material: Aerospace-grade aluminum
- Installation: Tool-free, approximately 10 seconds
- Color: Black
- Magazine Type: Base pad extension
- Installation System: Tyrant proprietary retention plunger
- Finish: Black
- Made In: USA
What’s Included
- Tyrant CNC +2 magazine extension base pad
Frequently Asked Questions
How long does installation take?
Installation takes around ten seconds without any tools. Simply slide the extension onto the bottom of your magazine, and it locks into place with the retention plunger system. Removal is equally simple if you ever need to take it off.
Will the Tyrant extension work with factory Glock 42 magazines?
Yes, it's designed specifically for factory Glock 42 magazines and most aftermarket alternatives. It does not work with Magpul PMAG brand magazines.
How much does the extension add to the weight of my magazine?
The extension adds minimal weight in aluminum construction, roughly half an ounce. The slight added mass actually helps ensure reliable magazine drops during reloads without disrupting the balance of your carry gun.
Does this extension help with grip?
Yes, the extended base pad adds grip surface area, which is particularly useful if you have medium to large hands. The knurled texture improves control without adding bulk to your magazine or affecting concealability of your pistol.





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