The rear sights also featured folding horizontal extensions to give a degree of lead suitable for firing against aircraft. 1085 with a carbon content of 0.80% to 0.90%, and a manganese content of 0.60% to 0.90%.✽uring destructive tests, the Arisakas were shown to be stronger than the M1903 Springfield, Lee–Enfield, and Mauser rifles. Some of the early issue Type 99 rifles were fitted with a folding wire monopod intended to improve accuracy in the prone position. Tests on samples of Arisaka rifles conducted after the war showed that their bolts and receivers were constructed of carbon steel «similar to SAE steel grade No. Over the course of various wars several productions runs and variants were made, including the transition from the 6.5mm Type 38 cartridge to the larger 7.7mm Type 99, and the introduction of a paratrooper rifle that could be disassembled into two major parts for airborne operations. The Arisaka rifle was designed by Colonel Arisaka Nariakira (有坂 成章 1852–1915), who was later promoted to lieutenant general and also received the title of baron from Emperor Meiji, in 1907. Many thousands of Type 99s and other Arisaka variants were brought to the United States by soldiers as war trophies during and after World War II. The most common specimens include the Type 38 chambered for the 6.5×50mmSR Type 38 cartridge, and the Type 99 chambered for the 7.7×58mm Type 99 cartridge, which was comparably powerful to a modern.
The Arisaka rifle (有坂銃 Arisaka-jū) is a family of Japanese military bolt action service rifles, in production and use since approximately 1897, when it replaced the Murata rifle (村田銃 Murata-jū) family, until the end of World War II in 1945.