222special正式定型为"cartridge, 5.56mm ball, m193".
北约标准5.56mm弹药
(奥尼尔在突袭中使用的5.56mm空尖弹)
【互动】想淘汰5.56mm口径枪弹?目前来看路还很遥远!_凤凰财经
mks 5.56mm突击步枪_弹匣_枪榴弹_威力
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