Aiden grabbed a couple clips to go with the model he had picked out for Marco. Taking the gun back he showed Marco had to change the clip. He then decided it would be a good idea to show him where the safety was and how it worked. "I'll show you how to use it after we leave."
Not knowing what they could end up facing, Aiden grabbed the rest of the guns and ammo they had. The rifles and shotguns would do nicely to blow some heads off. It was less messy than ripping them off barehanded.