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Glock +4 Magazine Extensions – Extra Rounds for Glock 17, 19, 43X & More
Glock +4 Magazine Extensions – Boost Capacity and Grip
Take your Glock to the next level with a +4 magazine extension that delivers real performance gains. Whether you’re competing, training, or carrying for defense, having four extra rounds can make all the difference — especially when every shot counts.
Mounts Plus offers a curated selection of +4 extensions that fit a range of Glock models including Glock 17, 19, 26, 43, 43X, and 48. These extensions not only increase capacity but also enhance your grip, control, and reload speed.
🔧 What a +4 Extension Does for Your Glock
Adding a +4 base plate to your Glock magazine gives you:
- Four additional rounds without modifying your firearm
- Improved grip surface — great for control on compact models
- Extended mag for faster reloads under stress or competition
- Durable aluminum or polymer construction depending on the brand
- No gunsmithing required — installs in minutes
Whether you’re carrying a Glock 43X or running drills with a Glock 19, a +4 extension provides a noticeable performance advantage.
🔍 Compatible Models & Brands
We carry tested and trusted mag extensions from manufacturers like Ghost Inc, FAB Defense, and more — designed to fit the following Glock pistols:
Check each product’s specs to ensure the perfect fit for your setup.
| Glock Model | Compatibility |
|---|---|
| Glock 17 | Ghost MOAB +4 Extension |
| Glock 19 | Ghost MOAB +4, FAB Defense |
| Glock 26/27 | Compatible with select brands |
| Glock 43 | FAB Defense +4 Extension |
| Glock 43X/48 | Ghost +4 EMD for Slimline |
💬 Real Feedback from Glock Owners
“The added four rounds gave me confidence during a recent training event. Reliable feeding, easy install — great investment.”
— Verified Glock 19 Owner
“Perfect fit on my Glock 43X. Doesn’t interfere with holstering, and now I’ve got 14 rounds ready to go.”
— CCW Holder
✅ Why Choose Mounts Plus?
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In-stock inventory from top tactical brands
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Fast shipping and real-time tracking
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Trusted by shooters since 1993
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Knowledgeable support team — we know the gear we sell
Our extensions are ready to install and field-tested for duty, defense, and range use. Add capacity. Improve control. Stay in the fight longer.
🔄 Related Glock Upgrades
💡 Common Questions
Q: Does a +4 extension require a new magazine spring?
A: Some models include or recommend an upgraded spring. Check individual product pages for spring compatibility.
Q: Are these extensions legal in my state?
A: Capacity laws vary. Always confirm with your local regulations before purchase.
Q: How hard is installation?
A: Very simple. Remove the factory baseplate and slide on the new +4 extension — most installs take under five minutes.
Q: Is there a +4 option for Glock 43X and 48?
A: Yes! We stock specific +4 extensions made to fit Glock’s Slimline models.