A lot of peoples guns are loose in Cogs hands,turns out their not for him they are for Cerebros to hold. Its undocumented feature.
I got my Cog for 10bucks from HTS and so far I'm so happy i have him. I want to dig out my Fort max titans return but to much trouble he's just really cool like this.
Transformers Siege deluxe class Cog might just be about as close as you can get to endless play value. Others can combine with him, he can combine with others, he is the finishing touch for Titans Return Fortress Maximus, he has two distinct vehicle modes and they too can even combine. Cog...is there anything he can't do?