Ultra Magnus is not a new mold but a straight white redeco of R.E.D Optimus Prime with the same accessories and all that you like (or not) about this action figure. Knock Out is a completely new mold which finally bring us a proper cartoon-accurate (but non transformable) rendition of the character. That being said, he comes with several accessories and weapons from the Transformers Prime cartoon like his staff, buzzsaw, saw blade and drill as well as several interchangeable hands. For those wondering about scale, there are some great pics next to some Transformers Prime figures like Soundwave and First Edition Deluxe Starscream and we can see that Knock Out really shines on his own.
See all the images after the break and then click on the discussion link below and share your impressions on the 2005 Boards!