Ghost Inc. Mother of All Baseplates, Mag Extension, +6 Rounds, Fits Magpul PMAG 17, Matte Finish, Black GHOPM17-6MOAB-BLK The Ghost Inc. Mother of All Baseplates (MOAB) has been designed to enhance your shooting experience. With its extra power magazine spring" rounded ergo design" positive magazine seating" and extraction traction points" you'll notice the difference the MOAB makes right away.