Airsoft 40mm Insert

This is for a 40mm airsoft grenade launcher shell. I couldn't find anything online to insert inside the shell so I made my own. It's meant to act like the TAGin but not so dang expensive.
Recommended to be printed with TPU
Please feel free to remix it and make it better!!!
As these are prototypes please be aware that changes will come as needed.
Should be noted not all field will let you use these, and I am not responsible for any damage or misuse.