The M4/M4A1 5.56mm Carbine is a lightweight, gas operated, air cooled, magazine fed, selective rate, shoulder fired weapon with a collapsible stock. It is now the standard issue firearm for most ...
据有关媒体报道，美国陆军已经逐步列装下一代班组武器系统，包括XM7步枪、XM250轻机枪及XM157火控系统，XM7取代M4，XM250取代M249，新武器发射6.8毫米子弹，杀伤力和穿透力更强。只能说在之后，美军的单兵作战能力将更强。一切的原因就是 ...
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