How to tell the new KO Reissues apart from authentic toys.

Are the "high-end" KOs of the headmasters, combiners, and reflector from Chimungmung compatible with authentic G1 figures? Just the accessories? I have real figures, but the accessories are so expensive I'm thinking of picking up some KOs just for the accessories. So do the heads, weapons, combiner bits fit onto real G1s?

Thanks!

Transformers Movie 3 Ultimate Optimus Prime-China import | eBay

Anyone bought one of these I can't seem to get an answer if they are KO's or just the chinese market release packaging?

Of if they are the same quality as the original ones if they are fake (i.e. made in the same moulds on the side)

I thought I answered your question, chimingmung has that ultimate op listed as a KO.

Sorry to be a bother, but would anyone be able to help me out here?
Thanks!

I think you'll probably find that the guns fit, but exchanging body parts may be hit and miss.

I know some have problems with the KO Dinobot Swoop's weapons fitting even on the toy they come with.

My HQ KO Grimlock and Sludge's guns/swords don't fit the authentic ones and likewise my HQ KO Aerialbots connectors don't plug into my authentic Silverbolt.

I did not have the time to read through this entire thread. What is the datestamp on the KO dinobots? I had read on the ko comparison website, it is just "Takara". Has this changed? Are KO dinobots made with the "Has/Tak" stamp?
My dinos Sludge and Slag have the Has/Tak stamp. The Slag has both on the same leg. The Sludge has both, but the mold according to Fred's is the Macau mold since the indent is oval and not square, but is reads takara and not Macau.

Thanks for the replies everyone. Sounds like it's better chances than a coin flip that the KO parts won't fit my authentic figures. Sadness.

I had to shave the post on my ko Swoop's blaster just to get him to be able to hold it. His sword fits fine though. His sword also fits my legit Dinobots as well.