[Tusjecht]

Arms Creation is the name of the skill, not the armament which has not been revealed.

Spoiler for Answer:

To set the record straight: the ISS kits only bear the emblem of two crossed guns, guns are not the kit itself.

The "fail-safe" thing you're talking about is not entirely accurate, that refers to the weapons Rider created but wouldn't fire - he made them that way as a sign of peace. Only one gun has ever been seen, it's named "Seven Roses".

As for the emblem themselves, they're like a watermark on each piece of equipment created by Rider's armament.

I'm not exactly sure why ARS could pick up the armament to begin with. A theory I have in mind is that once the redhead rolled and the fighting started, Cosmos went invisible and quietly picked up the armament in Card form or something like that.

Finally, the fail-safe function of the ISS kit, IIRC, is a recall function so that it flies back to the source, wherever that is.