I ended up with a handful of PCC combiner commanders so I decided to gather them all up as well as a sampling of weapons. Some work pretty well. Some not so much. I do hope they decide to make more sets, I could go for some sea themed and rescue themed. This is my favorite body combo. I think this is the one I will stick with for display. He is holding the guns from Headrobots. with Bruticus Shotguns With Shadow Commander's Sword With Protector's Gun and Kup's rifle with Windburn's rotors So even if you don't have the military based cores the iron army set is still worth getting, and it does indeed appear that the hands can easily hold any 5mm peg.