Recently purchased an airsoft 40mm grenade for an under barrel launcher and the caps or plugs it came with were made of a black rubber which would be very hard to find once fired. So I figured that one printed out of some orange PLA I had sitting around would be easier to find and if lost it would be no worse than the bio BBs that are fired during the game. Highly recommend printing in a bright colour so that you can reuse them. Have fun!
Also flip the model so it prints flat side down!
Printer Brand:
Creality
Printer:
Ender 3
Rafts:
No
Supports:
No
Resolution:
0.12
Infill:
20%