it is and guess what - its PERFECT for the mould and doesnt need to be removed like the cybertron downshifts head needs to be during transformation. Just rotate it back and it slides in PERFECTLY
There's actually an upcoming third party upgrade kit that would go perfectly with that! Here's the link. The main reason I wasn't getting it was I didn't want to have to repaint a Sideswipe but you've already done all the work on your own! I'm not knocking your work, just informing you of the upgrade. I love what you did. Turned out great!