Savior Equipments thinkin' that rifle mag you got there fits in this rifle magazine holder. How do they know? They actually fitted all the AR-15/AK mags you can think of when they made it. FeaturesMagazine Pouch for Rifle MagsHook Backed Panel to Attach on Loop PanelDoes Not Fit AR-10/.308 Mags 1-SlotExternal | 3.75" x 5.8"Magazine Slot | 3" x 5.75" 2-SlotExternal | 7" x 5.8"Magazine Slot | 3" x 5.75"3-SlotExternal | 10.25" x 5.8"Magazine Slot | 3" x 5.75"