Do you long to give your CW Megatron's fusion cannon a bit more girth? Now you can with Bonnatron's Cannon Beefomizer! Simply push the attachment onto the end of Megatron's cannon, and BOOM, upgraded weapon!
Note: the Cannon Beefomizer is designed so that Megatron can still fire his missile, but I can't test that myself, as I lost Megatron's missile the day after I got him...
Item comes unpainted. Tested and recommended in Polished WSF.