Ventilated armour plate

I made this model as I could not find any other plate that I felt trying like 500g of filament on. I would recommend using five wall loops, five top/ bottom shells and 20% gyroid infill. There could be some light sanding needed to fit both parts together. The two halves can just be clicked together (some force is required) and then be fully secured with three m3 bolts. Please feel free to leave advice or ideas.