TFCC Krok.

Takara Legends Nightbird and MP Exhaust would be close seconds. However, I've only bought a handful of official toys last year.

Quote Originally Posted by GoktimusPrime View Post
We know that Megatron cannot be a gun, but a tank is a really suitable substitute because he still transforms into a weapon. And objectively speaking -- if we remove our rose-tinted G1 nostalgia glasses -- a tank is actually way cooler than a pistol. Cos tank > pistol! There's also the fact that Megatron always needs someone to hold him whenever he transforms. Sheesh!
*snip*
But if you really want, apparently there's a fan-made gun mode (I've never personally tried it).
That gun mode is about as convincing as Soundwave's streetlight mode.