Cap guns for sure, but we also had bottle rocket wars, in which we actually fired them at each other.
Triple the fun if our Dads joined in!
Cool. When we played cowboys and Indians, my brothers and I were always the Indians because we were Indians and had all the right regalia. One kid had an old prop pistol from the Gunsmoke set. His dad had been a grip on the series. When I was a toddler, Milburn Stone was our landlord.