In 2010, Glock began introducing new Generation 4 versions of their pistol lines. The .40 caliber Models 22 and 23 were first, followed by the 9mm Models 17 and 19. A few other models have been introduced since, including the 21, 32 and 34. The early Generation 4 9mms had a few function problems with light target loads, but this was resolved with a proprietary recoil spring assembly designed for the 9mm.
The GLOCK 34 - 9mm competition model put me over the edge when I saw it. I thought, "I've got to have that gun so I can review it". I'm a sick man. I look at Sigs, S&W's, Rugers, Taurus, Kimber, and I like them all. But when I see a GLOCK I don't have, or a good deal on one that I don't need, I've got to have it. I know some of you are already thinking about how that's some kind of sin, but that's where my bondage is.
Not much has changed on the Glock 34, and it is still the most popular choice for Practical Shooting competitors, including Dave Sevigny, the most prolific winner in the history of the USPSA Production division.
The G34 featured a 5.3-inch barrel on a full-size frame that housed a 17-round magazine. The G34 has a large cutout in the top of its slide. It might just be the easiest way to produce a slide of the proper weight so that reciprocation remains smooth and reliable.