步枪是单兵最基本也是最主要的武器装备。近些年来,虽然世界各主要国家投巨资研发了各种先进的战机和舰艇,但在城市环境和游击战的背景下,为陆军研发新式武器包括单兵使用的性能更优的步枪,也成了不少国家追求的目标。比如,美国国防部长罗伯特·盖茨就表示,要将武器配备给那些 Rifles are the most basic basic is the most important weaponry. In recent years, despite the massive investment made by the major countries in the world in the research and development of advanced fighters and naval vessels, in the context of urban environment and guerrilla warfare, the Army has developed new types of weapons, including single-armed, better performing rifles, Many countries pursue the goal. For example, U.S. Secretary of Defense Robert Gates said he is going to have weapons for those