Marauder Inc WWII Walther P-38, modular scope, and stock
Parts box muzzle flash
Styrene tube
Aluminum tube

Not Megatron, Totally not Megatron. Nope this is the Micronauts' Micro Changer Gun Robo cannon that converts into a spy pistol. Ok, maybe a little Megatron. But pre-Transformers Megatron when he was a 1:1 scale toy that was really a character and accessory for Takara's Microman toyline, Gun Robo.

I've seen a ton of customs of Megatron in the Joe verse, lots of gun and tank versions, including Hasbro's HISS cross-over, and even some Joe-Scale figure versions. I don't remember ever seeing one of the Micronauts cannon versions. The first step, make it all modular just like the original...or as close as possible. Next, figure out where I ended up putting that SDCC IDW Revolution set's Micronaut figurine. Finally, remember why I hate taking pictures when someone walking by causes everything to fall over.