Huadai Precision Industries H64
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| Huadai Precision Industries H64 | |
|---|---|
| File:Huadai H64.png Above Huadai Precision Industries H64 with the stock and foregrip extended | |
| Type | Submachine Gun Personal defense weapon Machine pistol |
| Place of origin |  Anikatia |
| Service history | |
| In service | 1964-Present |
| Used by | Anikatia; see Users |
| Wars | 1967 Revolution, Nazali War, Kolenomese War of Liberation, Myrdesia War, Seubyeni Islands Crisis |
| Production history | |
| Designed | 1953-1963 |
| Manufacturer | Huadai Precision Industries |
| Produced | 1963-Present |
| Variants | See Variants |
| Specifications | |
| Weight | 1.6 kg (3.53 lb) |
| Length | 583 mm (23.0 in) stock extended / 333 mm (13.1 in) stock collapsed |
| Cartridge | 9×19mm Parabellum |
| Action | Straight blowback |
| Rate of fire | 650 rpm |
| Muzzle velocity | 320 m/s (1,050 ft/s) |
| Effective firing range | 75 and 150 m sight adjustment |
| Feed system | 9x19 mm: 15 or 25-round box-round detachable box magazine |
| Sights | Iron sights |
The Huadai Precision Industries H64 is a Anikatian submachine gun. Designed in the late 1950s and 1960s and produced since the 1963 by Huadai Precision Industries. The H64 combines the characteristics of a self-loading pistol and a fully automatic submachine gun making it an early type of personal defense weapon. The weapon system was introduced to the Anikatian armed forces, primarily used as a personal defense weapon for officers, artillery troops and tankers in place of a standard pistol. But it's effective design allowed it find its way into use as a frontline weapon by elite light infantry assault forces and in use by the Special Government Agents as well as police forces.
Design
The H64 is a selective-fire straight blowback-operated weapon that fires from the open bolt position. Unlike most submachine guns firing from an open bolt, the H64 has a reciprocating external breech bolt, also known as a slide. When the trigger is pulled the slide is released and driven forward by the return spring, stripping a round from the magazine and feeding it into the chamber. As soon as the cartridge is lined up with the chamber the extractor grips the rim and the gun fires while the slide is still moving forward. The firing impulse retards the forward movement of the slide and drives it back. The extractor grips the empty case until the ejector pushes it through the ejection port in the right of the slide. The slide continues to the rear and the return spring, located under the barrel, is fully compressed. The slide rides over a retarder lever which snaps up and holds the slide to the rear. The rate-reducing device, an inertia buffer in the rear of the slide, continues rearward under its own momentum and compresses the buffer spring. When the spring is fully compressed it throws the retarder forward and this pushes the retarder lever down out of engagement with the slide and, provided the trigger is still depressed and ammunition remains in the magazine, the slide goes forward to repeat the firing cycle.
Features
The submachine gun consists of the following main components: the barrel, frame (containing the shoulder stock, pistol grip and forward grip), slide, return spring and spring guide rod and the magazine. The slide houses an inertia buffer and spring retarder mechanism, designed to reduce the weapon's rate of fire down to 650 rounds/min from a natural frequency of about 840 rounds/min. The slide telescopes around the barrel up to the muzzle and has an extension that serves as a recoil compensator which deflects muzzle gases upward to counteract the natural rise of the weapon when firing in automatic mode. The compensator is shaped like a long spoon and can be used to cock the weapon with just one hand, accomplished by pressing the compensator up against a rigid vertical surface until the slide locks back.
A spring-loaded extractor is installed inside of the slide and a raised side wall of the seated magazine acts as the casing ejector. The striker firing mechanism has a firing pin fixed within the slide. The firing control mechanism does not have a fire selector but is instead equipped with a two-stage progressive trigger that enables semi-automatic fire (after pulling the trigger back to the first stop and releasing it rapidly) and continuous fire (pulling the trigger back completely to the rear and holding it back). The manual safety secures the firearm against accidental discharge by immobilizing the slide in its forward, rear and intermediate positions that the slide assumes when the weapon is being stripped or assembled. The safety toggle is located on the left side of the weapon's frame, behind the pistol grip.
The retractable metal stock (made from strips of flat bar) is ended with a pivoting shoulder pad. The stock is pulled out and used with the folding vertical grip to provide a steady hold during automatic fire. The weapon’s barrel, which can be removed by the operator in field conditions has a chrome-lined bore and 4 right-hand grooves with a 1 in 252 mm (1:10 in) rifling twist rate.
Variants
XH63-09
- Issue of 1963 – The very early prototype models, chambered in 9×19mm Parabellum. If has a different folding stock and had a wooden hand grips.
H64K
- The standard weapon, has retractable buttstock and folding foregrip. Offered in 9×19mm Parabellum.
H64SK
- The special edition that includes an attachable a suppressor, and some other features such as a special high-pressure match cartridge, has retractable buttstock and folding foregrip.
Ammunition
The H64 is available only in the 9×19mm Parabellum cartridge. The H64 uses either a short 15-round or a long, 25-round magazine. After the last cartridge has been fired from the magazine the slide is locked open on the slide catch.
Accessories
The additional equipment the weapons is supplied with include: a secure carry case, four spare magazines, a holster, sling, magazine pouch and a cleaning rod and lubricant bottle.