![]() ![]() It fires from the closed bolt, an is a hammer-fired. Spectre is a recoil operated, automatic firearm. Spectre was designed primarily for close combat, anti-terror or police operations that require compact size, instant firepower at the short ranges and safety of operations. The Spectre SMG was developed by Italian company SITES in the mid-1980s. In general, the Suomi KP-31 was a highly effective,reliable and accurate gun, but too expensive to manufacture.The Spectre M4 is an Italian submachine gun manufactured by the company SITES In mid-1950s Finnish army also adopted 36-round magazine, designed in Sweden for M/45 Carl Gustaf submachine gun, and Suomi submachine guns were slightly modified to accept those magazines. Drum magazines held 40 (rarely encountered early versions) or 71 rounds and later inspired Russians to adopt drum magazines for their PPD and PPSch SMGs. Box magazines were conventional staggered-column ones for 20 rounds or twin-staggered-column magazines for 50 rounds each (also known as "Coffin magazines" due to their shape, these could be described as two staggered-column magazines clipped together and having common cartridge exit). Suomi was fed from box or drum magazines. Sometimes the barrel was also fitted with machined muzzle brake / compensator. This feature, more adequate to machine guns, was a welcome during intensive fire-fights, when many hundreds of shots were fired in fully automatic mode. The safety – fire selector is located at the front of triggerguard, and gun could be fired in semi-auto or in full-autoĪnother interesting feature was the quick-detachable barrel and barrel jacket. The charging handle was somewhat similar in appearance to one found on bolt action rifles it is located behind and below the receiver, and does not move when gun was fired. When bolt started to move forward, the valve closed itself, so difference of air pressures behind the bolt and in atmosphere slowed the bolt on its way forward into the battery. This was necessary to achieve a fire rate reduction by using a simple vacuum valve in the receiver cover – when bolt moved back, the valve let the air out easily from the space behind the bolt. The rear cover of the receiver was screwed on to it also almost hermetically. The bolt and receiver were machined from high quality steel and bolt was fitted to the receiver almost airtight. ![]() It fires from the open bolt, and used so called "differential locking" or "advanced primer ignition" principle, when fixed firing pin ignites the primer BEFORE the bolt stops on its way forward into the battery, so the bolt momentum of inertia is used to lock the chamber during the initial phase of shot, when pressure in the chamber is high. Suomi submachine gun is a blowback operated, selective fire weapon. Manufacture of the Suomi was ceased in Finland in 1944, but it was used well until the 1990s, when finally rendered obsolete and replaced in Army by assault rifles. Suomi was used with great success during Winter War of 1940 against Soviet Union, when, wisely used, this SMG showed to the world the importance of the submachine guns to the modern warfare. Used mostly by Finnish and Sweden armies, it was also widely exported into Baltic countries, some European and South American countries. Suomi submachine gun was manufactured by Finnish company Tikkakoski Oy, and licensed to Denmark (Madsen), Sweden (Husqwarna) and Switzerland (Hispano Suiza). Definitive version of the Suomi submachine gun was adopted by Finnish Army in 1931 as Suomi-KP Model 1931, or simply KP-31 (KP stands for Konepistooli – Automatic Pistol in Finnish language). First prototype was built by 1922, and by 1926 Lahti produced a working weapon, chambered for then-standard Finnish army's 7,65×22 Luger / Parabellum ammunition. The Suomi ("Finland") submachine gun was developed by Finnish arms designer Aimo Lachti in 1920-1930 period. Patent diagrams explaining(left to right) 40- and 71-round drums designed by Lahti and 50-roundbox magazine designed by Schillstrom.Ĭaliber:9x19mm Luger/Para Weight: 4.6 kg empty, 7,03 kg with loaded 71-rounddrum Length: 870 mm Barrel length: 314 mm Rate of fire: 900 rounds per minute Magazine capacity: 20, 36 or 50-round box magazinesand 40- or 71-round drum magazines Effective range: 200 meters Images from US patent issuedto Aimo Lahti for basic design of Suomi submachine gun. Suomi M 37-39submachinegun with short barrel, produced under license in Sweden by HusqvarnaVapenfabrik (original M37 weapons were chambered for 9×20 Browning Longammunition, modified M37-39 – for 9×19 Luger ammunition). Suomi M/32 "tank" or"pillbox" submachine gun with 50-round 4-row magazine, no butt andspecial barrel jacket. SuomiM/31 submachine gun with 71-round drum magazine, standard version. Suomi M/26 submachine gun, caliber 7,65×22 Parabellum. ![]()
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