The Scenario Arms 5.56mm Magazine/Magwell for the Tippmann Phenom is a specially designed magazine made to replace the 9mm mag that comes stock with the Tippmann Phenom. It clips into the Phenom's magwell and envelops the phenom's gimpy little 9mm mag to give your marker the appearance of a higher caliber assault marker.
Constructed from high strength, high impact resistant plastic resins capable of withstanding 5400lb psi of pressure. Each magazine is handmade to order in the USA.
The Scenario Arms Scenario Arms 5.56mm Phenom Mag is newer, so it should be commonly available, both new and used.