Made by Louis Marx Co. in Great Britian, the Sound-O-Power Astro Gun is essentially the same gun as the Astrophaser also made by Marx . This practice of renaming and reusing toys was a common one with Marx, whose Flash Gordon Radio Repeater, first made in the 1930s, was later reissued in the 1950s as three other different guns. The Sound-O-Power Astro Gun is 12 inches long.