New Version A&K M4 S-System

Not to be outgunned by Jing Gong, A&K released their 2008 M4 S-System version. Like JG, the A&K M4 S System version 2 shoots at around 410-420 fps (tested) “stock” with metal bushings and has its markings now. (call 09225479078 – Flash)

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