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.

2017年12月13日 · 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.

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.

The HK33SG/1 is a sniper variant of the standard HK33, along the same lines as the Heckler & Koch G3SG/1. It is accurised using a hand picked barrel, is fitted with a slightly adjustable cheek riser and features a special trigger group.

2020年3月18日 · 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).

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.

Chambered in 5.56mm x 45mm NATO, the HK53 packs a substantially heavier punch than the 9mm MP5 without being much bigger. With the right clothing, the HK53A3 could be carried as a concealed weapon. The short barrel does, however, result in a reduced muzzle velocity and therefore a shorter effective range when compared with the HK33.

The HK53 is a German assault carbine developed from the HK33. The HK53 pairs the compact size and stock of the HK MP5A3, and the power of the HK33. The HK53 comes in one model, the HK53A3, which has a collapsible stock. The HK53 was in service with the German Army until it was replaced by the HK G36K in the early 2000s.

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.

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).