Extrusion Modelling - Rifle

 This is the illustrated image I downloaded and imported on to modeler and then began to extrude this and created a 3D version of this rifle.

this is how far I got with the rifle I extruded this is segments and then combined them all together to create this rifle.I used the extrude tool to expand the flat rifle to make it appear 3D making sure all the parts look realistic and not to large.

All the parts of the rifle that I did not extrude and apply to the partially done rifle above are separate in this picture.