Vintage 2010 - Captain Jet Harrison Space Explorer Space Gun - Brand New Shop Stock Room Find. Released by Ecotronic Ltd in 2010 as part of their Retro Range of Toys and Games. This fantastic Captain Jet Harrison Space Explorer Gun comes with 3 x Spinning Missiles that are loaded into the gun and turned to tension, then simply pull the trigger and watch your missiles fly. Back in the 1950's many wonderful comic book hero products were made. Captain Jet Harrison space gun captures that period in time. Gorgeously retro the space gun is a hit with children today - it fires spinning missiles high into the sky. Brand New Shop Stock Room Find. Discovered in the store room of a closed down shop. All orders received before 4.00pm Monday to Fridays are shipped the same day.