When gun is fired, the pressure began to move the cartridge back against the bolt face. The system features two rollers, inserted from the sides into the bolt head and rested on the inclined forward end of the bolt body ( see this diagram it will pop up in the new window). It also has a hollow cavity at the rear, in which an inclined forward end of the rear part of the bolt (bolt body) is inserted. The front bolt part (bolt head) is relatively light and has a bolt face with extractor on it. This system employs a two parts bolt with two rollers. Production of the modelo C rifle was ceased in 1976, and in 1980s it had been gradually replaced by its 5.56mm derivative, CETME Modelo L assault rifle.Īll 7.62mm CETME rifles are built around Vorgrimlers' roller delayed blowback system. Its key improvements were 4-position diopter sights (instead of the earlier leaf type open sights), wooden handguards instead of earlier steel ones, bipod was made as a separate part and, most important, the chamber was fluted to improve extraction and avoid torn rims and cartridge case failures in harsh environment conditions. This rifle was intended to fire only standard, full power 7.62x51mm NATO ammunition. In 1964, CETME introduced the Modelo C, which also was adopted by Spanish Army, Navy and Air Force. This rifle was intended to fire 7.62x51mm reduced loads but also could fire the standard 7.62mm NATO, if the bolt group and the return spring are replaced with the appropriate set of parts. In 1958 CETME introduced a slightly improved design, known as Modelo B or Model 58. Improved rifle entered serial production in 1956 and was adopted by the Spanish army in 1957. The overall design was found adequate, but cartridge was rejected in favor of the 7.62x51mm round with lighter bullet and a reduced powder charge. This cartridge featured a long and streamlined bullet, made from aluminum. The initial assault rifle development at the CETME was conducted around proprietary intermediate cartridge, known as 7.92x40mm CETME. All those weapons are built using the delayed blowback system of operation, designed by Vorgrimler and his men at the Mauser in 1945 and refined by CETME. This deal later resulted in the famous family of the H&K weapons, like the G3 and HK33 assault rifles, HK21 and HK23 machine guns, MP5 submachine guns and numerous other small arms that achieved a worldwide popularity. This rifle was not manufactured in any quantities, but its design served as a basis for further development at the CETME, and more important, at the another German company, Heckler & Koch, which obtained a license for the Vorgrimler / CETME rifle design circa 1957. The Vorgrimler was the designer of the experimental German assault rifle, known as "Gerat 06" or Stg.45(M). At about the same time it employed the German arms designer Ludwig Vorgrimler, who worked for the famous Mauser Werke in Germany before and during the World War 2. The Spanish state company CETME (Centro de Estudios Tecnicos de Materiales Especiales - Special Materials Technical Studies Center, now known as Empresa National Santa Barbara) was founded in 1949 to develop various small arms for Spanish army. Rate of fire: 550 - 600 rounds per minute 58 with 30 rounds magazineĬETME modelo C rifle (semi-automatic only "Sporter" version shown)īuy CETME rifles at Impact Guns online storeĬaliber: 7.62x51 mm reduced power load also 7.62x51mm NATO Stg.45(M) - German predecessor to CETME rifles, made at the Mauser Werke in 1945Įarly CETME assault rifle prototype chambered for experimental 7.92x40mm cartridgeĬETME modelo A assault rifle, chambered for 7.62x51mm reduced load cartridgeĬETME modelo B / mod.
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