Glock 43x Magazine - Tyrant Design is a manufacturer of high quality USA Made CNC machined AR-15 and handgun upgrades and accessories. They recently sent me a pair of Glock 43X & 48 +4 Magazine extensions. When it comes to magazine extensions, the decision on whether or not they are quality extensions usually comes down to how well they work with the gun. In addition to these metrics, I will also look at how it changes the carry experience compared to standard capacity mags.
My first impressions of the magazine attachment can be summed up in one word - precision. As a former machinist myself, I can see the quality CNC machining put into this piece. Although the magazine extensions appear to have very rough corner edges, they have been chamfered to a comfortable angle that prevents any poking or scratching when handling them or holstering them.
Glock 43x Magazine
Anodizing is done very well and is resistant to normal wear and scratches, but if you put enough effort into it, it will fade - it cannot be defeated by any means, but it is good enough that it will not wear down the finish with normal use. .
Glock 43x, 48 9mm 10 Round Gen 5 Magazine
I give them a solid 9/10 for looks - they look great when paired with the two original tones of the Glock 43X and Glock 48, both of which I own. The magazine is flush with the dimensions of the grip and only extends downwards, adding to the height of the entire weapon in this configuration. I was expecting a slightly odd look with other colors, but with the black and silver that Tyrant sent me, the gun looks great.
This is the scariest part of customizing a magazine extension for a Glock pistol. With most pistol magazines, simply press the button on the bottom of the magazine and remove the base plate. In the Glock magazine, there are two small arrow tabs on the right and left sides of the magazine body that are engaged in the base plate, which must be pressed in addition to the button on the underside to force the base of the spring up.
There are tools to do this, but I used a pair of channel keys to cool the sides. Even with channel locking, it takes a significant amount of force to deal with a small amount of engagement from the Locking tab to remove the original base plate.
After removing the original base plate, installing the Tyrant Design extension is a breeze: simply transfer the roller from the old spring to the extension spring, insert the spring and roller, then close them with the magazine extension.
Shield Arms Steel Glock 43x/48 Mag Catch
Tyrant has made disassembly easy by stopping a small arrow on the back of the extension that can be compressed by pushing firmly against something empty or other solid objects - no channel key needed.
The magazine extension works as advertised. I had a little trouble loading them up to 14 rounds. It doesn't matter with a little practice, but the last round definitely needs a lot of push to get there. Although the pressure is increased, the magazine can be inserted and the shutter closed, but it will not fall when fully charged.
I did some testing to see when the mags behaved during normal gun operation. If the magazine is fully loaded, they are difficult to seat and do not fall freely. However, it appears that you can have a magazine filled with 12 rounds and still have it fall out of the gun for free. With more rounds, the magazine tends to jam inside the magazine. This seems to be a problem with Glock magazines combined with increased spring pressure causing a bulge near the bottom of the OEM Glock magazine.
When fully loaded, the side of the magazine protrudes enough to store the magazine in the weapon. This may be a problem for some, but I found a minor problem since I could not see the fully loaded magazine falling out. In normal use, the spring provides enough pressure to properly load the weapon and secure the breech on the last round. Once the magazine is empty, the mags are released as usual - maybe even faster than magazines, due to the heavier weight of the attachment.
Emp Extended +2 Magazine For Glock 43x
One thing I noticed is that the attachment on the gun also prevents you from pinching your palm between the magwell and the magazine base plate when loading. Overall, I had better handle with the attachment of the magazine on.
The biggest downside to magazine extensions is in the concealability department. When loaded into the Glock 48, it adds almost 2 inches to the overall height of the gun. The bust is often the hardest part to hide because it goes against the natural oval shape of your waist. When hidden under the regular shirts I wear, they create a more visible print, which is not ideal.
Just recently, TFBTV's James Reeves gave us a scientific evaluation of the effectiveness of concealed carry pistols. The efficiency score is used as follows:
Calculated as the product of rounds per square inch and rounds per ounce. This does not account for the length of the entire gun, but accounts for its effectiveness. Lighter and thin pistols / short frame and high capacity will do well here. Higher scores are better.
Glock 43x Black Oem 10 Rd 9mm Mag
Glock 48 regularly earns an efficiency score of 0.79 with a magazine capacity of 10 rounds. With the magazine extended, the efficiency score drops to 0.76, which isn't much of a reduction. This puts the Glock 48 on par with guns like the SIG Sauer P228, Glock 26 Gen 3, and the compact SIG Sauer P320. The main factor contributing to the lower score is added height.
I subjectively think that if I carry this magazine attachment, I will carry it either in the pocket or in the magazine holster, as this will reduce the negative effect they have on concealability when loaded into the gun. Of course, you can change this efficiency score by adding a large magazine extension, but that will ultimately defeat the hidden purpose - basically cheating the system.
I think the Tyrant Designs +4 Magazine Extensions are a great addition to your Glock 43X or Glock 48 for everyday shooting or as a backup magazine extension. They don't add weight and provide extra grip space for those with exceptional hands.
I probably won't take it as part of my EDC kit, but I will take it to the range and keep it charged at home. The way I carry it doesn't lend itself to having a bigger grip than a Glock 48. Having extra mags with a higher capacity is always a good idea and I think the best way to carry it is to have it loaded at home or as an extra case in car or with you.
Shield Arms Opens Pre Orders For S15 15 Round Glock 43x/48 Magazines
If you want to pick up a special Tyrant Designs +4 Magazine extension for your Glock 43X or Glock 48, you can visit their website. Each magazine extension costs $39.95 and comes in 6 different color options and comes with a 30-day money back guarantee and a lifetime warranty.
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