Czechoslovak submachine gun «Scorpion»

Shortly after adopting the Czechoslovak army machine mod .. 1958 the army leadership insisted on the creation of a powerful automatic pistol. He was supposed to be for certain categories of military personnel, who need a compact but effective submachine gun: officers, sergeants and soldiers of technical specialties, members of the crews of combat vehicles (tanks, infantry fighting vehicles and armored personnel carriers), commanders of artillery calculations. In addition, the Ministry of Internal Affairs and asked for him to develop automatic weapons for special purposes, adapted to operate in confined spaces, such as inside a car or airplane. They demanded small size and weight (for concealed carry, under clothing), as well as the possibility to equip the muffler if necessary. In the absence of its own material and technical base, somewhere in 1958-1959. Interior Ministry commissioned the development of the gun factory engineers’ FC Zbrojovka Brno Brno. » Head Design Bureau of the enterprise engineer Jiri Cermak took an active part in creating a new model, but it became the chief designer Miroslav Ribar.

In 1959 came the first prototype submachine gun, designated «W-59». It was developed by the Research Institute of General Engineering of Brno. In the «W-59» used automatic with a free gate and relatively thin 7.65-mm cartridges, «Browning». This has necessitated the use of a special device — the rate of fire retardant. Jiri Cermak wanted to take advantage of the technical solutions applied in the construction of French machine gun system Chatellerault arr. 1924/29, the inertial But retarder Chatellerault in a horizontal position (in the butt machine guns) and could not be set on the frame submachine gun without modification for use in the vertical position (in the handle of the gun). Miroslav Ribar found another solution — it is introduced into the design of a mechanical retarder weapons of its own design, is mounted in a cavity of the pistol grip. In his later Ribar and Cermak received a patent.

Retarder Ribar Cermak acting very unusual. When moving back the bolt strikes the retarder lever on the rear side of the receiver. The lever is rotated downward and transfers the energy of impact plunger (piston). Clutching his spring, easy plug is lowered into the hollow pistol grip. At the same time the shutter reaches the rearmost position, and under the action of return spring starts to move forward. But after 6 mm path, resilient hook on the rear side of the receiver seizes and stops the shutter.

On the equipment of the army and the Interior Ministry of Czechoslovakia submachine gun «W-59» was adopted in 1961 under the designation Vz.61. Weapons also received a proper name — «Scorpion» («Skorpion»). The original production of «Scorpions» vz.1961 organized in 1963 on the «Plant of Precision Engineering Uherský Brod.» So from the beginning of the 60s. last century and until 1983 was called a subsidiary factory «Czech FC Zbrojovka Brno», located in the town of Uherský Brod. From 1963 to 1966, are produced around 100,000 Vz.61. In 1966, production was suspended and then resumed in 1973. From 1973 to 1976 we produced 55,000 of these submachine guns. The third series of 45,000 units released in 1978-1979, and since 1992 to 1994 for sale on the international market have made more 210000 «Scorpions».

For firing the regular submachine gun «Scorpion» was used cartridge caliber 7,65×17 mm, which was the standard chuck the Czechoslovak security services. Vz.61 — arms, with automatic running from the impact of free speed and producing fire at the closed gate. Reducing the length of the milled receiver was achieved through the use of a telescopic bolt, which covered a large part of the trunk. Hard dual-reflector served projection frame weapons. In the longitudinal channel was the drummer with his spring. The shutter moves in the barrel (breech) boxes, reinforced stiffeners. Sleeves ejected upward through the window in the upper surface of the ejector gate and the receiver.

Weapons flag had translator fire mode at the same time serving fuse. Check box was located on the left above the pistol grip, its forward position (indicated by the number «20») corresponds to an automatic fire, the mean («O») — Status of «fuse» back («1»)

— A single fire.

Location check box to work with him shooting hand thumb. In the «fuse», the descent and the gate locked in the front position by lifting up the slide stop lever. From early rounds pistol was protected by an automatic fuse, acting as a self-timer with automatic fire.

Power submachine gun «Scorpion» is produced from two-row box magazine: a short — a capacity of 10 rounds (Curb weight of the store — 0,15 kg) or long — with a capacity of 20 rounds (Curb weight of the store — 0.25 kg). After using up ammunition from the magazine, the slide gate is delayed by a delay in the rear position. Exemption from the slide stop going by slightly moving the bolt back. Light wire-butt piling up ahead, in the folded position of the fixed resilient «wings» and fly guard blocked the line of sight.

Staff Czechoslovak submachine gun Vz. 61 had a wooden handle and not quite commonplace angle attachment to the receiver at ninety degrees.

(indicated by the number «20») corresponds to an automatic fire, the mean («O») — Status of «fuse» back («1»)

— A single fire.

Location check box to work with him shooting hand thumb. In the «fuse», the descent and the gate locked in the front position by lifting up the slide stop lever. From early rounds pistol was protected by an automatic fuse, acting as a self-timer with automatic fire.

Power submachine gun «Scorpion» is produced from two-row box magazine: a short — a capacity of 10 rounds (Curb weight of the store — 0,15 kg) or long — with a capacity of 20 rounds (Curb weight of the store — 0.25 kg). After using up ammunition from the magazine, the slide gate is delayed by a delay in the rear position. Exemption from the slide stop going by slightly moving the bolt back. Light wire-butt piling up ahead, in the folded position of the fixed resilient «wings» and fly the fuse does not overlap the line of sight.

Staff Czechoslovak submachine gun Vz. 61 had a wooden handle and not quite commonplace angle attachment to the receiver at ninety degrees.

Handle and frame of weapons has been connected to an aluminum cylinder with a thread at the end of the sleeve, inside which moves the piston (plunger) of fire retardant. The metal part of the «Scorpion» were polished coating is chemically blackening (dark blue color). Pistol with magazine tolerated within a short leather holster and two spare long shop — in particular leather haversack. The scope of delivery of weapons were ramrod, brush, rub, lubricator, a tool to adjust the sights and cord.

Czech industry was producing submachine gun Vz. 61 in the following modifications: Vz.64, Vz.61 E (with a handle made of plastic) and Vz.83 chambered for 9×17 mm «Browning»; Vz.65 and Vz 82 under Soviet patron 9×18 mm «Makarov»; Vz 68 and CZ 91S chambered for 9×19 mm «Luger».

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