目的　研究大口径转管高射机枪轻量化技术 .方法　从武器系统角度出发 ,对枪身两种原理方案进行了比较 ,针对该武器系统 ,从枪身和枪架两大部分出发 ,对主要构件进行了分析 .结果　提出了大口径转管高射机枪轻量化的一些关键技术 .结论　研制步兵用转管武器 ,必须对轻量化关键技术进行攻关 Objective To study the lightweighting technology of large-caliber pipetting high-projectile machine gun.Methods From the perspective of the weapon system, the two principle schemes of the gun body were compared. According to the weapon system, starting from the two parts of the gun body and the gun frame, The results of the proposed large-diameter rotary tube shotgun lightweighting some of the key technologies.Conclusion The development of infantry tube weapons, the key technologies must be tackled lightweight