M4卡賓槍，21世紀最具代表性的槍支！特種部隊首選，AR槍族的經典之作！槍械口徑之爭，M7替代M4A1，美軍次時代班用武器！| 柯爾特 | M16 | AR-15 | HK416 | 卡賓槍

視頻素材來源於網路！M4卡賓槍，美軍特種部隊的首選，AR槍族的又一經典之作，現在卻迎來末路！
The video material comes from the internet! The M4 carbine, the preferred choice of the US special forces and another classic of the AR gun family, is now facing its end!
#火力就是正義#M16#M4