The basic MP5, based on a modified and improved HK54, introduced in 1966. When first released, it had a gray phosphated finish, "Slimline" handguard, 8.9-inch barrel with "3-Lug" muzzle, and straight waffle magazines.

Jun 28, 2013 · The sights on the MP5 (originally dubbed the HK54), especially the rotating rear drum diopter sight, were much better than previous subguns, while its free-floating 1:10 twist. barrel provided...

The HK54, also known as HK9, is a German submachine gun developed by HK in the 1960s. The HK54 was further developed into the HK MP5. The name HK54 comes from the HK naming system for firearms. The 5 stands for a combat firearm, and the 4 stands for a weapon chambered in 9x19mm Parabellum.

One of the noticeable features of the original MP64/HK54 is the location of the rear sight, above the magazine, on the receiver body. Besides the location at the center of the weapon, the sight was also of the flip-leaf type.

1966年秋，西德国境警备队将试用的MP·HK54命名为MP5（Machine Pistol 5）冲锋枪。 这个试用的名称就这样沿用至今。 同年瑞士警察也采用了MP5，成为第一个德国以外采用MP5的国家。 通过试用，HK公司对MP5原枪型的瞄具进行了改进，将翻转式照门改为可在25～100m之间调整的回转环式照门；露出的准星改为带防护圈的准星；带鳍状物的枪管改为光滑的不带鳍状物枪管；枪管前方增加了三片式的卡笋，用以安装消声器、消焰器之类的各种枪口附件，经过上述改进 …

Aug 12, 2024 · Despite being markedly more complicated than comparable open-bolt designs, the closed-bolt HK54 was unusually soft-shooting and accurate. The HK54 eventually morphed into the MP64 that ultimately became the MP5.

In 1966, the West German Police and Border Guard (‘Bundesgrenzschutz’) adopted the HK 54, designating it as the MP5. It was originally available in two forms – MP5 with fixed buttstock and MP5A1 with retractable buttstock.

Jul 13, 2023 · HK54: The original version of what would become the MP5, produced by HK prior to 1966. MP5A1: The first version of the MP5, with no stock and the “S–E–F” selector. MP5A2: The version that would become the standard, with fixed stock and “S–E–F” selector.

Left side view of MP5A4 sub machine gun. Note the trigger group with burst fire option and the fixed polymer stock. The MP5 is an early Cold War era sub machine gun of German origin. It was developed in the mid 1960's from the successful G3 battle rifle. The MP5 has become one of the most produced and widely used sub machine guns in the world.

Mar 18, 2016 · The MP5 originated in West Germany as the HK54 as part of Project 64. The project was based on the proven design and function of the 7.62mm NATO HK G3 battle rifle.