HECKLER & KOCH HK4
Posted Jun 15, 2023
The Heckler & Koch HK4 is a semi-automatic handgun chambered in .25 ACP and 9×17mm Kurz (or .380 ACP). It is the first of the “OG” series of handguns designed and manufactured by Heckler & Koch of Germany.
The HK4 was introduced in 1968 and replaced the FN Model 1910 in the company’s catalog. It was intended to be an affordable, concealable, dependable handgun for personal defense. It was also marketed as a backup or squeeze-cocking pistol.
The HK4 is a single-action, recoil operated, semi-automatic handgun. It was fitted with a DA trigger in order to make the gun easier to operate for non-firearming personnel. The gun featured a polymer grip frame with an integral thumbrest and serrated backstrap. It was chambered in .25 ACP and 9×17mm Kurz (or .380 ACP).
The HK4 was produced in three basic designs. The first design, produced between 1968 and 1970, featured fixed sights with a rear notch and a single stack magazine. The second design, produced between 1971 and 1984, featured adjustable sights with a white "U" on the rear notch and a double stack magazine. The third design, produced in 1984, featured adjustable sights and a triple stack magazine.
The overall design of the HK4 is compact and lightweight. The gun measures just 5.8 inches in length and 4.6 inches in height. It weighs 21 ounces unloaded. The gun is designed with a short, lightweight slide and barrel which make it easier to conceal and handle. The adjustable sights allow for more precise shooting and the three-stage recoil spring ensures reliable operation regardless of the ammo being used. The HK4 also features a manual safety and magazine release located on the left side of the frame.
The HK4 has seen a great deal of success over the years and is well-loved by collectors and shooters alike. The gun is accurate and reliable, with a smooth trigger pull and reliable functioning. The low recoil and easy takedown makes it ideal for use as a backup or concealable handgun.
In terms of looks, the HK4 is quite attractive and modern. The gun’s frame is made of polymer with a black finish that resists corrosion and marring. The slide is also made of polymer and designed with a long striations cut into it. The gun is also incredibly slim, with a width of 1.3 inches.
The HK4 has earned a positive reputation from users due to its high quality design and features. The recoil spring ensures reliability, and the magazine release is conveniently located. The safety is also easy to operate and the trigger is smooth and easy to pull.
Overall, the Heckler & Koch HK4 is a great choice for shooters looking for a reliable and affordable semi-automatic handgun. The gun is small and lightweight, making it easy to conceal and handle. The DA trigger makes it suitable for less-experienced shooters, and the adjustable sights allow for more precise shooting. The polymer frame ensures durability and reliability, and the bonded finish provides good protection from corrosion and wear. The HK4 is an excellent choice for personal defense, target shooting, and competition.
Pros & Cons
Pros:
• Very accurate and reliable shooting
• High quality German craftsmanship
• Compact and lightweight design
• Quick and easy to disassemble and maintain
• Compatible with a variety of ammunition, including .22LR and .25ACP
Cons:
• Limited availability of original parts and accessories
• Expensive to purchase
• Limited capacity magazines
• Heavier trigger pull than other pistols
Who Should Buy
Anyone who is legally allowed to own a firearm and has a valid gun permit may purchase a HECKLER & KOCH HK4. Those who are underage, have a criminal conviction, or do not have a valid gun permit should not purchase a HECKLER & KOCH HK4.
Comparisons
| Feature | HECKLER & KOCH HK4 | SMITH & WESSON PC1911 | WILSON COMBAT CQB TACTICAL LE | HECKLER & KOCH HK 416 |
|---|---|---|---|---|
| Caliber | .380 ACP | .45 ACP | .45 ACP | 5.56 NATO |
| Action Type | Single-Action | Semi-Auto | Semi-Auto | Semi-Auto |
| Mag Capacity | 6 rounds | 8 rounds | 7 rounds | 30 rounds |
| Weight | Approx 18 oz | 36.8 oz | 43.7 oz | 8.16lbs |
| Overall Length | 142mm | 219mm | 218mm | 820mm |
Features / Specs
• Type: Blowback-operated semi-automatic pistol
• Caliber: .25 ACP
• Capacity: 6+1
• Barrel length: 2.8"
• Overall length: 6.5"
• Weight: 15 oz
• Sights: Fixed open-square notch rear, blade front
Popular Accessories
(.32ACP)?
- Grips: The original plastic grips factory installed by Heckler & Koch are often replaced with aftermarket grips such as Pachmayr Presentation or Pachmayr Gripper grips.
- Magazine: Original Heckler & Koch 10-round magazine is popular, as well as some aftermarket 10-round magazine extensions.
- Holster: Quality leather and Kydex holsters are available for the HK4 in both inside-the-waistband and outside-the-waistband designs.
- Sights: You can find different types of sights for the HK4, from the original fixed sights to adjustable Wolff sights.
- Lubricants and Cleaners: High-quality lubricants and cleaners, such as break free CLP, are essential to prevent corrosion and keep the HK4 functioning properly.
Accuracy
The Heckler & Koch HK4 is a reliable gun that offers accuracy and durability. The pistol features a double-action trigger, which makes it easier to achieve precision shots. With its 4.9-inch barrel length and 8.5-inch sight radius, the pistol is able to handle most shooting scenarios. The slide-to-frame fit of the HK4
is particularly tight, and this helps the gun to be accurate and have low recoil. Furthermore, users receive a mechanical accuracy guarantee when they purchase the HK4, confirming the pistol's precision performance. In addition to its accuracy, the HK4 is also a highly durable gun that is able to withstand thousands of rounds without any sign of wear. This makes it an excellent choice for shooters who want a reliable and accurate gun for competition shooting or personal protection.
