Is the seller purposely blocking the barrel color with the instructions to hide the KO purple color of it?
The KO Shockwave comes in two version - one with a 'cartoon accurate' purple barrel and the original grey barrel so don't be fooled if you see one with a grey barrel thinking it's not a KO.
I've fondled a KO Shockwave and the quality is sadly quite good, so very close to an exact replica but the angles on the leg molds are off. I did create a photo comparison but now I can't for the life of me find it.