TorkMag started out making a different AR-15 magazine. They focused on the spring and follower design. By changing the way the magazine lifts the rounds upwards, they were able to increase capacity in regular-sized AR15 magazines. So what would normally be a 30 round magazine now holds 35 rounds. They also make a 50 round magazine that is just a little longer than a traditional 40 round magazine.
Well, now the company is targeting the Pistol Caliber Carbine world and handguns. Their G17 magazine holds 20 rounds. However, it does come with a +2rd extension. In that case, TorkMag was able to increase capacity by a single round since the Glock 17 magazines hold 17 rounds and a +2rd extension brings it up to 19 rounds. More importantly, though, is that the TorkMag G17 magazine will have a molded mag catch notch along with the standard Glock mag catch notches for use in their G-Block.
The G-Block uses standard Glock magazines but they do need some modification. Since it makes use of the AR-15 mag catch, you need to cut a new notch in the magazine to work with it.
TorkMag posted this video.
The G-Block will retail for $74.95 and the G-Block compatible G17 magazine will retail for $19.95. Both are set to be released this Summer.