Here are a few simple methods to make working guns with 3D printers. 1. Print plastic shaped like gun 2. Load bullet. 3. Fire bullet with now destroyed gun. 1

Here are a few simple methods to make working guns with 3D printers. 1. Print plastic shaped like gun 2. Load bullet. 3. Fire bullet with now destroyed gun. 1. Model gun 2. Print wax cast 3. Make cast 4. Melt and pour steel into cast. 1. Buy everything except a upper receiver without a gun permit. 2. 3D print an upper receiver and attach to normal gun parts. 3. Use like normal gun (for a little bit)