Booligan gives us an initial walkthrough of the Apex Airsoft MK13 MOD4 EBB which he will give a full review soon at Booligan Airsoft... "The Apex MK13 series is a brand new lineup from a relatively new manufacturer. Featuring shuttle driven blowback, 9mm ball bearing equipped gearbox, and a full metal body, barrel, and free float RIS, the MOD 4 is skirmish ready out of the box. Watch my website for a full review."