Outwardly, the Type 64 showcased a rather basic appearance for its dedicated role. The receiver was somewhat tubular in its shape with slab sides, contouring nicely forwards towards the integrated suppressor cylinder. The angled pistol grip was slung under the receiver in the usual way while the rectangular trigger loop was large enough to encourage use by a gloved hand. The stock was of a metal, twin-strut design akin to the Kalashnikov series of weapons and hinged to fold under the receiver. The magazine was inserted into the awaiting well seated ahead of the action and accepting the proprietary 30-round magazine. To allow for the required suppression qualities of the gun, the barrel was appropriately drilled and the suppressor added over it as a sleeve, threading onto the receiver's forward end and shrouding the barrel in its entirety.
All told, the Type 64 offered a rate-of-fire nearing 1,000 rounds per minute (though heavy use of full-automatic fire tended to wear the suppressor down substantially faster than normal). Muzzle velocity was listed at 960 feet per second, giving it sound penetration between short and medium ranges ( the most common engagement ranges of submachine gun types). Maximum range was out to 650 feet in ideal conditions. Feeding of the weapon was through a 30-round detachable box magazine inserted into the bottom of the receiver. Sighting was of a basic iron arrangement featuring a forward and rear emplacement.
The Type 64 went on to provide useful operational during its service life, allowing for further development similar weapon systems - namely the Type 85 of 1985 (in its suppressed form) which replaced the Type 64s in service to that point. Type 85 suppressed variants utilized the 7.62x25mm Type 64 subsonic cartridge to achieve its required quiet operation.
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