Prop Glock 17

I made this as a fun project and to try and improve my modeling skills I intended to have it fire Nerf bullets or something similar but couldn't get mine to function properly as I used filament to pin the trigger together and it snapped when trying to test. It uses a spring in the back to push air through the barrel I have no idea if this would work and there may be too many gaps for air to escape for it to work well but it looks and functions great as a prop. The bits in red are where springs go… There are probably better models out there….. but If you want to improve the model Please Do:)