Glock Magazine Coupler, 62 Rounds!

At the moment USPSA Pistol Caliber Carbine (PCC) division does not have any restrictions to magazine size. Open Division, where anything goes like Top Fuel racing, still has a magazine size limitation where the magazine cannot be longer than 170mm. No such thing in PCC.  Because of this, the sky is the limit with regards to capacity for Pistol Caliber Carbines. This has given rise to a bunch of upgrades to magazines such as extensions to get 40+ rounds in magazines.

Why would you want 40+ rounds in a magazine? It is all about the nature of the USPSA competition. The game is pure speed with a hint of accuracy. Typically a stage is 30-35 rounds. So having a 40+ rd magazine means you do not have to reload and that saves time. Imagine how much time is saved in car racing if you could have a really large fuel tank and not have to refuel during a race. The same idea applies here.

Taccom makes a magazine coupler that holds two factory Glock magazines end to end. The coupler appears to be some parts 3D printed and some other material for the side plates.

Glock magazine coupler close

Above you can see the protective end cap that covers up the bottom magazine feed lips.

Glock magazine coupler

You can couple two 17rd-mags for 34 rds, a 31rd and a 17rd for 48rds or two 31rd mags for 62 rds. I am not sure what they are using for the springs. I assume it is just the respective magazine spring that came with the magazine and the springs are positioned end to end.

The coupler retails for only $29.95 on

Nicholas Chen is a firearm aficionado. Growing up in California, He learned about firearms and hunted with his father growing up in Southern California. Once he moved out to Pennsylvania and then spent a few years in New York State, he learned to truly appreciate firearms and the second amendment. It was in New York State where he became a USPSA competitive shooter and learned about 3Gun. He is an avid fan of running and gunning. Nicholas is a fan of pretty much anything that shoots although the slicked-up race guns are what interests him the most. Having spent time with FFLs and other friends with NFA items he has begun his collection of NFA items and has learned that everything should be suppressed and full auto where possible and legal.

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