These are about as vastly reproduced or faked as the burgundy Squid and Bib so be careful.
I had one in my hands about 3 months ago and the rocket does have a dip where it locates into the pack, rockets removed via force will always show telltale signs as the bonding agent used to secure them is very strong, have a go at removing one from a beat up HK fett you will need to near destroy the figure to get it out.
I may have the oppertunity to buy one soon in C8.5 condition, if i do so i will take pics and post them here, unless other collectors feel i should not do this incase the scammers get hold of the pics and use them as a source of info.