The Glock 39, chambered in 45 GAP (Glock Automatic Pistol), is a compact, semi-automatic pistol designed for concealed carry and self-defense. Introduced in 2005, the Glock 39 was part of Glock's effort to provide a pistol that combined the.45 ACP's stopping power with a cartridge that would fit within a smaller frame, similar to the 9x19mm or.40 S&W. The 45 GAP cartridge, developed in collaboration with CCI/Speer, was intended to replicate the performance of the.45 ACP in a shorter casing, allowing for more compact pistol designs.
Design and Features of the Glock 39

The Glock 39 features a slim, compact design that makes it easily concealable. It has a polymer frame, a steel slide, and a cold-hammered barrel. The pistol is striker-fired, with no external safeties, adhering to Glock’s Safe Action System. This system requires a combination of actions to fire the pistol, making it safe against accidental discharges. The Glock 39 also features a magazine capacity of 6 rounds, which, while not high, is typical for compact.45 caliber pistols.
Performance and Ballistics of the 45 GAP
The 45 GAP cartridge is designed to achieve similar ballistics to the.45 ACP, with a slightly shorter overall length, making it suitable for pistols with shorter slides. This results in a pistol that can be more easily concealed while still offering the perceived benefits of a.45 caliber round, including larger diameter and, theoretically, better stopping power. However, the actual ballistic performance can vary depending on the specific load used. Factory loads typically propel a 185-grain or 200-grain bullet at velocities similar to those of.45 ACP rounds, resulting in comparable muzzle energy.
Cartridge | Bullet Weight | Muzzle Velocity | Muzzle Energy |
---|---|---|---|
45 GAP | 185 grains | 1,000 ft/s | 400 ft-lbs |
45 ACP | 185 grains | 1,000 ft/s | 400 ft-lbs |

Market Reception and Comparison to.45 ACP

While the Glock 39 and the 45 GAP cartridge were designed to offer a compelling alternative to the.45 ACP, the 45 GAP has not gained the same level of popularity as the.45 ACP. Several factors contribute to this, including the established market presence of the.45 ACP, the wider range of firearms chambered for.45 ACP, and the slightly lower recoil and muzzle flip associated with some.45 ACP loads due to the longer casing allowing for a more gradual powder burn. The Glock 39, however, remains an option for those seeking a compact.45 caliber pistol with the reliability and durability associated with Glock products.
Practical Considerations for Concealed Carry
For individuals considering the Glock 39 for concealed carry, practical considerations include the pistol’s size, weight, and the availability of holster options. The Glock 39 is slim and lightweight, making it an excellent choice for deep concealment. However, the relatively low magazine capacity may be a drawback for some users. The decision to carry a Glock 39 should be based on a thorough evaluation of personal defense needs, local laws, and the individual’s ability to safely and effectively operate the pistol.
Key Points
- The Glock 39 is a compact, semi-automatic pistol chambered in 45 GAP, suitable for concealed carry and self-defense.
- The 45 GAP cartridge offers similar ballistics to the.45 ACP but in a shorter casing, allowing for more compact pistol designs.
- The pistol features a slim design, striker-fired mechanism, and a 6-round magazine capacity.
- While the 45 GAP has not surpassed the.45 ACP in popularity, the Glock 39 remains a viable option for those seeking a reliable, compact.45 caliber pistol.
- Practical considerations for concealed carry include the pistol's size, weight, and the availability of holster options, as well as the individual's proficiency with the firearm.
In conclusion, the Glock 39, chambered in 45 GAP, presents a unique blend of compact design,.45 caliber stopping power, and Glock reliability. While the 45 GAP may not have achieved the widespread adoption of the.45 ACP, the Glock 39 stands as a testament to the innovative approach Glock has taken to meet the evolving demands of the firearms market, particularly in the realm of concealed carry and self-defense.
What is the primary advantage of the 45 GAP over the.45 ACP?
+The primary advantage of the 45 GAP is its ability to achieve similar ballistics to the.45 ACP in a shorter casing, allowing for more compact pistol designs.
How does the magazine capacity of the Glock 39 compare to other compact pistols?
+The Glock 39 has a magazine capacity of 6 rounds, which is typical for compact.45 caliber pistols but may be considered low by some users compared to pistols chambered in other calibers.
What factors should be considered when deciding to carry a Glock 39 for self-defense?
+Factors to consider include the pistol’s size and weight, the availability of holster options, local laws regarding concealed carry, and the individual’s proficiency and comfort with the firearm.