Glock 39. Built around the design parameters of GLOCK’s subcompact models, the G39 mixes small, concealable size with the power and accuracy of the 45 GAP cartridge.

Glock G39 Gen 3 is a sub-compact, semi-automatic handgun designed for concealed carry. Chambered in 45 GAP, this polymer-framed pistol provides power and accuracy wrapped in a small package. The textured grip, lined front and backstraps, and finger grooves ensure a secure grasp, while the Universal Glock Rail makes for the easy addition of accessories. This pistol also features a Safe-Action trigger system for safety and tool-free takedown for easy maintenance. Related product


GLOCK USA G39 Gen 3 is a fantastic choice for plain cloths duty, off duty or concealed carry. With a smaller profile and 6 rounds of hard hitting .45 GAP, this sub-compact GLOCK 39 is the ideal for platform for personal defense! GLOCK has a well established world famous reputation for being utterly reliable, durable, and accurate. It’s no wonder why more law enforcement, military, and lawful citizens rely on GLOCK to protect themselves and their loved ones then any other pistol. Get yourself a GLOCK G39 Gen 3 today and experience for yourself why they call it “GLOCK Perfection”.

Glock 39 Model 45 GAP

The 39 makes for a powerful, accurate backup gun, but ammo choices limit it somewhat.

Primarily, .45 GAP ammunition differs from .45 ACP in terms of size. The GAP cases are shorter, and the primer pocket is smaller. At first look, the small pistol primer can look a bit lost in the center of the headstamp.

With this in mind perhaps it was only fitting that the Glock 39 was the smallest pistol in this test. Despite the barrel measuring just a hair longer than 3.4 inches, it looked and felt even smaller. The frontstrap only had room for two fingers, and the magazine basepad was flat. Releasing the magazine required getting the hand out of the way.

The G39 fed from probably the smallest of all Glock factory magazines. The double-column magazine stacks one round at the top, two pair more piled in staggered formation in the center with the last one offset to the right for a total of only six rounds. Despite being the smallest and tied with the Model 36 for lowest round count in the Glock lineup, our .45 GAP Model 39 did come with a couple of upgrades.


1 Length (Overall)** 165 mm | 6.50 inch
2 Slide Length 159 mm | 6.26 inch
3 Width (Overall) 33 mm | 1.30 inch
4 Slide Width 28,5 mm | 1.12 inch
5 Height incl.Mag. 106 mm | 4.17 inch
6 Line of Sight (Polymer) 137 mm | 5.39 inch
Line of Sight (Steel) 136 mm | 5.35 inch
Line of Sight (GNS) 135 mm | 5.31 inch
7 Trigger Distance** 72 mm | 2.83 inch

*FOR GEN4/GEN5 MODELS: Check out the Gen5 and Gen4 Technology area for medium/large backstraps.

Technical Data are rounded and do not reflect tolerances – they may be altered without notice! Subject to technical changes.


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