This Universal Holster and Mag Pouch from Galati Gear works with numerous tactical accessories including Humvee Campco Concealment Holsters, Galati Double and Discreet Case Modular Pockets, as well as Concealment Attache Cases. Made from durable fabric holster body with a 1 1/2" elastic retention band for securing an extra magazine or a collapsible baton. Overall Dimensions: 8" x 4". GLMA400 Holster opening: Top 4 1/2" Bottom: 2"