That was Sideswipe's. You can tell by the small size and the fact that it's Double barreled like Sideswipe's. Plus, No way could SS have reached Ironhide's guns. BTW,the dread that he shot in the head was Crowbar
He re-holstered the gun after he killed the Dread, as if it were his own. And the gun looked similar to the one Que had given him earlier in the movie. I may very well be wrong, but the idea that it was his gun seems plausible.
I'd rather have all characters with weapons than half of the characters without them. Even if those weapons aren't accurate ,they still are pretty cool
Sentinel's Rust Cannon, Mirage's God of War like Blades, Blackout's weapons, Soundwave Sonic Blaster, and Megatron's Fusion Shotgun.
I'm gonna put two down. Maybe not the best but pretty cool. Gun- sentinels rust gun / cannon. Seems like a one shot one kill weapon also the weapon that broke my heart when he killed Ironhide. CQC- sideswipes swords/arm blades. I mean c'mon he cut a guy in half. Honorable mention Blackouts pulse wave thing from movie one Ironhides cannons Mirage/Dino's arm blades
But remember,it may have never been mentioned in the film(lack of time?),Sideswipe is Ironhide's student,so Ironhide may very well have made his guns,being the weapon specialist and all
In terms of causing the most widespread collateral damage in one shot, I have to give Blackout the vote. Sentinel's, Megatron's & Shockwave's cannons were all cool, but they still needed to be pointed, aimed & shot. Blackout's weapon, however, were expanding sonic bombs that appeared to clear EVERYTHING out within a 500 foot (or more) radius per single shot and could be shot or simply dropped without having to aim at anything.
I think he was kicked into an auto parts shop. Some oil or gas could have caused him to explode.Basic Michael bay logic really. Plus,Ironhide got hit with one and he didn't blow up