a gun
A Gun?
time, materials and knowledge.
Depends on the gun some you can put a pin in it some you just need to get an automatic chamber for it.
Skills, raw materials, specifications, tools
Water bottles, are pretty good.
you need to go to instructables.com and search around to make that kind of gun
You need to Identify the make and model of the BB gun in order to get an answer not the serial number
You need 3 sand 3 gun powder from the creeper
What is the make and type of gun? We need info to help.
You'll need gun powder first.
You need 3 sand 3 gun powder from the creeper