bottle rocket gun v2

thingiverse

Humans designed this device to launch bottle rockets, with a closed-back design distinct from the original model. Simply drop a rocket into the barrel, light it up, and fire away. However, be cautious about the type of rocket you use, as some may shoot sparks out the back, making it advisable to wear a glove or other hand protection. Despite this warning, I've used it numerous times without protection and haven't encountered any major issues.