Raven Concealment Systems Copia, Double Magazine Pouch, Ambidextrous, Fits Most Double Stack Magazines Chambered in 9/40/357Sig, Standard Height Body Shield, Matte Finish, Black DMCBKT The Copia magazine carriers are premium, duty-grade, injection-molded magazine carriers designed for hard-use, daily concealed carry. Their innovative cavity design and retention system allows them to be used ambidextrously with the double-stack magazines of nearly 100 different handgun models chambered in 9/40/357.