Question: The gun in which the Beretta 93R was derived from was designed in what year?

Context paragraphs:
Beretta M12: The Beretta Model 12 is a 9×19mm Parabellum caliber submachine gun designed by Beretta.  The production started in 1962, the first users were the Italian Carabinieri and the Italian State Police even though in limited number, only in 1978 it was widely issued replacing the old Beretta MAB.  In 1962 the Italian Army bought a limited number of Franchi LF57 submachine gun, judged better than the M12 but never issued to the troops, and only in 1992 the M12S2 variant was introduced also if in very limited number.  The Italian Air Force, instead, bought a large number of M12S and M12S2 for the airport security units.  However the weapon had a higher initial success in the Arab countries and South America.  Its debut in combat came during the Tet Offensive in 1968 when the Marines guarding the U.S. embassy in Saigon repelled the assault by the Viet Cong using the Beretta M12.  It is also used by various South American, African and Asian countries, and made under license in Brazil by Taurus, in Belgium by FN Herstal and in Indonesia by PT Pindad.

Beretta 21A Bobcat: The Beretta 21A Bobcat is a semi-automatic pocket pistol designed by Beretta in Italy.  Production began in late 1984, solely in the Beretta U.S.A. facility in Accokeek, Maryland.  It is a further development of the Beretta Model 20, whose production ended in 1985.

Beretta 93R: The Beretta 93R is a selective-fire machine pistol, designed and manufactured by Italian firearms manufacturer Beretta in the 1970s for police and military use, that is derived from their semi-automatic Beretta 92.  The "R" stands for "Raffica", which is Italian for "volley", "flurry", or "burst" (sometimes spoken "R" as ""Rapid"" in English).

Chevrolet Beretta: The Chevrolet Beretta is a front-wheel-drive coupé produced by Chevrolet from 1987 to 1996.  The Beretta was designed in the same design studio as the Camaro and the Corvette, Chevrolet Exterior Studio 3, and was built at the Wilmington, Delaware and Linden, New Jersey assembly plants with other GM L platform models, the Chevrolet Corsica which came shortly after the Beretta, and the Canada-only Pontiac Tempest four-door sedans.  The Beretta was produced in base, CL, GT, GTU, Indy, GTZ and Z26 models.  A convertible was the pace car for the 1990 Indianapolis 500, and GM initially announced a production convertible replica, but a coupe version was offered instead.

Beretta 92: The Beretta 92 (also Beretta 96 and Beretta 98) is a series of semi-automatic pistols designed and manufactured by Beretta of Italy.  The model 92 was designed in 1972 and production of many variants in different calibers continues today.

Beretta APX: The Beretta APX is a semi-automatic pistol designed and produced by Beretta, designed largely for the U.S. Armed Forces' XM17 Modular Handgun System competition.  Beretta had offered to provide their M9A3 model at a reduced price as a continuance of M9 procurement program, but were informed that the changes to the M9A3 were so significant that it fell outside the scope of an Engineering Change Proposal (ECP), and that the Defense Department preferred to go through a new procurement instead.

Burst mode (weapons): In automatic firearms, burst mode or burst fire is a firing mode enabling the shooter to fire a predetermined number of rounds, usually two or three rounds on hand held weapons and over 100 on anti-aircraft weapons, with a single pull of the trigger.  This firing mode is commonly used in submachine guns and carbines.  Other types of firearms, such as machine pistols (e.g., the Beretta 93R) may also have a burst mode.

Beretta 3032 Tomcat: The Beretta 3032 Tomcat and Beretta 3032 Tomcat Inox are semi-automatic pocket pistols designed and manufactured by Beretta.  They are chambered in .32 ACP (a.k.a. 7.65 mm Browning) and are small pistols, designed for concealed-carry and use as backup weapons.  The Beretta 3032 Tomcat builds on a long line of small and compact pocket pistols for self defense manufactured by Beretta.

Beretta AS70/90: The Beretta AS70/90 was a light machine gun or squad automatic weapon derived from the Beretta AR70/90 rifle system.  It used the same gas operated, rotating bolt system as the rifle but fired from an open bolt and had a much heavier fixed barrel.

Beretta 70: The Beretta 70 was a semi-automatic pistol series designed and produced by Beretta of Italy, which was based on the earlier 7.65mm Beretta M1935 pistol.  Some pistols in this series were also marketed as the Falcon, New Puma, New Sable, Jaguar, and Cougar (not to be confused with the later Beretta 8000, which was also marketed as Cougar).  The gun is notable for its appearances in film, and is also the first compact Beretta pistol to feature several improvements commonly found in Beretta pistols for the rest of the century.

Supporting paragraphs: Beretta 93R Beretta 92
Answer: 1972