$20.99
45 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The standard Glock 42 ships with a 6-round magazine, which is fine for deep concealment but leaves you reloading constantly during a training session. ETS built this 12-round extended magazine specifically for the G42 in .380 ACP to give you a lot more time between reloads without changing pistols. The extended length sits about 2 inches below the magwell, giving you a fuller grip to work with while you shoot.
The body is made from ETS's impact-resistant translucent polymer, which does a couple of things at once. It holds up to drops on hard surfaces without cracking, and the clear construction lets you see your round count and ammo type at a glance instead of guessing or counting. The polymer is also rated for resistance to heat, cold, UV exposure, and harsh chemicals, so it is not going to get brittle sitting in a range bag over time.
One thing worth knowing about extended magazines in general is that feeding reliability matters a lot, and ETS put real thought into it here. The magazine uses a durable steel spring paired with a polymer follower for consistent cartridge alignment and smooth feeding. The feed lips and body are also built to be creep-resistant, meaning they will not spread or deform when the magazine sits fully loaded in storage for extended periods.
The floorplate is ergonomically shaped to make it easy to grab from a mag pouch, and the whole thing breaks down for cleaning the same way a Glock OEM magazine does. It is also compatible with standard Glock and many aftermarket floorplates if you want to swap things out. This is a great range mag for G42 owners who want to stretch training sessions and cut down on reload interruptions.
No, this magazine is designed specifically for the Glock 42. The G42 is chambered in .380 ACP, which has different dimensions than 9mm, so this magazine will not fit the G43, G43X, G48, or any other Glock model. The G42 is a single-platform magazine with no cross-compatibility.
The 12-round capacity requires the magazine to extend approximately 2 inches below the magwell of the Glock 42. That extension also gives you more grip surface to hold onto while shooting, which a lot of people find helpful during longer range sessions.
Yes, ETS built the feed lips and body with a creep-resistant design specifically to handle long-term storage while fully loaded. The polymer will not spread or deform over time, which is one of the common failure points in lower-quality aftermarket magazines.
Yes, the ETS GLK-42-12 is compatible with standard Glock floorplates and many aftermarket options. The baseplate is also designed for easy tool-free disassembly, so cleaning and maintenance are straightforward.
ETS has built a solid reputation in the aftermarket magazine space, particularly for their Glock-pattern mags. Their magazines are made in the USA and come with a lifetime warranty. Real-world testing has shown them to feed reliably and hold up well to drops on hard surfaces.
The 12-round ETS mag is best suited for range use and training rather than concealed carry. The 2-inch extension below the magwell makes the pistol significantly harder to conceal. For carry, the standard 6-round flush-fit magazine or ETS's 7-round option would be the more practical choice.
| UPC | 854094005423 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GLK-42-12 |
| Brand Fit | Glock |
| Caliber/Gauge | .380 ACP |
| Capacity | 12 |
| Color | Clear |
| Model | |
| Model Fit | G42 |
| Product Type | Magazine |
You must be logged in to post a review.
Reviews
There are no reviews yet.