The Heckler & Koch HK33 is a 5.56mm assault rifle developed in the 1960s by West German armament manufacturer Heckler & Koch GmbH (H&K), primarily for export.

The G3 was the service rifle of the German Bundeswehr until it was replaced by the Heckler & Koch G36 in the 1990s, and was adopted into service with numerous other countries. The G3 has been exported to over 70 countries and manufactured under license in at least 15 countries. Over 7.8 million G3s have been produced. [3] .

Dec 13, 2017 · The HK33, and later HK53, used the same roller-delayed blowback action developed for the G3 in the mid 1950s. However, few major contracts were forthcoming with the German military opting to continue using the 7.62x51mm G3.

In 1968 Heckler & Koch launched the HK33, chambered in 5.56x45mm, to compete with Colt’s AR-15/M16. The HK33, and later HK53, used the same roller-delayed blowback action developed for the G3 in the mid 1950s. However, few major contracts were forthcoming with the German military opting to continue using the 7.62x51mm G3.

Mar 18, 2020 · In addition to the standard full-length rifle (with a 15.35 inch barrel) a shorter version was made as the HK33K (with a collapsing stock and 12.4 inch barrel) as well as a “submachine gun” variant, the HK53 (with an 8.3 inch barrel).

The HK 53 is a compact assault rifle of German origin. The HK 53 is the short carbine variant of the HK 33 rifle. It is often classified as a sub machine gun due to its compact size. The HK 53 looks like it has similar proportions as the MP5, but the magazine well and forearm and flash hider are longer, making it a slightly longer weapon.

The HK53 is technically a variant of the HK 33 rifle, based on the proven delayed roller lock bolt system introduced with the G3 battle rifle scaled down to 5.56 mm NATO. The gun is useful because it combines the power of an assault rifle, including the ability to penetrate body armor, with the handling characteristics of a submachine gun.

Mar 18, 2020 · In addition to the standard full-length rifle (with a 15.35 inch barrel), a shorter version was made as the HK33K (with a collapsing stock and 12.4 inch barrel). HK also made a “submachine gun” variant, the HK53 (with an 8.3 inch barrel).

HK 33 is a delayed blowback operated, selective fire rifle, that utilizes a two piece bolt. Two rollers attach to the bolt, and they function to delay the blowback. This is the method of delaying blowback originally invented by Ludwig Vorgrimmler and used first in the design of the StG 45 (M).

Dec 15, 2017 · The Heckler & Koch HK53 was designed in the 1970s as an ultra-compact version of their 5.56mm HK33– basically the West German answer to the Warsaw Pact’s AKS-74U Krinkov or Colt’s various...