Since in theory, Philippines National Police allows concealed carry for M4s for qualified civilians, how do you lawfully "conceal carry " one? If you carried it in a big duffel bag, maybe..How about if you carry it an a rifle bag, is that concealed? Everyone who sees it will assume it's a rifle, so somebody might report you as "suspicious person with FA." Or mob style maybe...in a guitar case... Wanna kill these ads? We can help!