The US Army issues these Tactical Assault Panels (TAP). The TAP is a go to platform to set up your kit. You can attach the TAP to the your kit or it can be worn standalone. Each magazine pocket fits two USGI M4 magazines and the end pockets are big enough to hold tactical radios. On the back of the TAP are three compartments for maps and other small items. On the front is MOLLE webbing for additional pouches or accessories.