
These were often issued to the best marksmen of the unit and occasionally employed like a sniper rifle. A 2.5X telescopic sight with a 10 degree field of view could be attached at the right side of the gun. The Type 99 had a blade front sight and a leaf rear sight, with graduations from 200 to 1,500 meters, with a wind adjustment. Like its predecessor, the Type 96, the Type 99 bears a distinct resemblance to the British Bren gun. A top-mounted curved detachable box magazine held 30 rounds, and the finned gun barrel could be rapidly changed to avoid overheating. Early models had a monopod at the stock and a flash suppressor on the muzzle, which was screwed onto a threaded portion of the gun barrel. However, it dispensed with the oiler and had better primary extraction, increasing reliability over its predecessors. The Type 99 was basically the same design as the Type 96, and had a number of parts in common. The Type 99 light machine gun was produced at Kokura, Nagoya Arsenal and Mukden with a total production of about 53,000 weapons. Similarly, it was necessary to develop a new version of the Type 96 light machine gun that would also be able to use this new larger caliber thus the advantages of common ammunition between riflemen and machine gunners could continue. This required a switch from the Type 38 rifle to the Type 99 rifle which could handle the more powerful round. This more powerful cartridge: 3,136 J energy, compared to the earlier 6.5x50mmSR Arisaka cartridge: 1,966 J energy, required a firearm that had more steel, bigger springs and a heavier bolt to handle the extra forces involved. However, in 1939 the Japanese army was in the process of switching to a larger and more powerful 7.7 mm cartridge which also had no rim, which improved cartridge handling. Using similar ammunition in both guns simplified supply and had the added advantage that any squad member could supply ammunition for the light machine gun, or vice versa. Both the earlier Type 11 and current Type 96 light machine guns used the same 6.5x50mmSR Arisaka cartridges as the Type 38 infantry rifle. The Type 96 had been introduced into combat service in 1936, and quickly proved to be a versatile weapon to provide covering fire for advancing infantry. Prior to the Type 99's development, the Japanese Army was using the Type 96 light machine gun, an improvement over the previous Type 11 light machine gun. Marine posing with a captured Type 99 with bayonet 26, which also inspired the Bren light machine gun.

Like the Type 96, the Type 99 traces its history to the ZB vz.

It was similar in design to the earlier Type 96 light machine gun, but designed to fire the new and more powerful 7.7 mm Arisaka cartridge, which improved energy by over 50%. The Type 99 light machine gun ( 九九式軽機関銃, Kyūkyū-shiki Kei-kikanjū) was a light machine gun used by the Imperial Japanese Army in World War II. Type 99 light machine gun seen at the New Brunswick Museum, Saint John, New Brunswick, Canada.ġ,350 yen ($316 USD) in December 1941
