I built a replica of the C4 from CS2 with fully functioning and accurate electronics! If you work for a three letter agency please have mercy... Join my Patreon where I share my project design files and documentation: https://www.patreon.com/azuremakes Please note that I am very careful with the storage and transportation of this replica. I keep it in a clearly labeled box explaining that it is not dangerous and I never leave it unattended outside the box. Projects like this should always be done with awareness of the perception of members of the public. There are no firearms pictured in the video, only airsoft replica props. 00:00 - intro 01:36 - planning 02:25 - finding parts 03:58 - circuit schematic 05:53 - PCB layout and assembly 08:55 - software 13:18 - adding a battery 14:23 - assembling everything 17:36 - final reveal