Now someone please tell me this guy didn't just put an orange marker cap in front of Megatron gun barrel! http://cgi.ebay.com/Megatron-Not-Reissue-G1-Transformers-100-Complete_W0QQitemZ130149695288QQihZ003QQcategoryZ4696QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
It'll be removable. After all the fuss with MP-5 auctions being removed because of how real it looks (which then got extended to original/reissue Megatrons; several members here had this problem with eBay pulling their auctions) putting an orange cap in the barrel is the easiest way to get past eBay's kneejerk "OMG GUN!" reaction.
Yea, that looks like a cap from an orange highlighter. Heck, it's not even attached to the barrel(don't tell ebay that), you can see it if you look closely.