Plasma Pistol coil hollowed

Small modification to the plasma coil component from the original model so users could add an LED, also makes the coil easier to slide in and out.  Highly recommend adding negative space below the plasma chamber portion of the forward pistol section to allow for a larger LED and battery source.

Same plasma coil part from the original, just with negative space added so users can add a light source (body is still the same so if one wants to add electrical components they would need to modify the original model to set up wiring in the plasma pistol body)