mach3, G code, or cad cam help

[tricky-dicky2005]

hi there does anyone have the g code or cad files for the e-11 barrel that can let me have i cant find anything or i am looking for the wrong thing i have just bought a new cnc 4 axis router and wanted to do my barrel on it in aluminum and i am not sure how to achieve this 

any help would be greatly accepted 

thanks in advance 

 

[Evilboy[501st]]

Check thingiverse. .stl files will convert easily.