The fastest, easiest way to load and unload magazines. MagPump™ magazine loaders and magazine unloaders are developed for passionate gun owners. The MAGPUMP is a hopper fed, loose ammo loader for, NATO, and Blackout. Compatible with all Mil Spec AR magazines, the MAGPUMP is. FeaturesFits all Mil-Spec AR Magazines60 Round Hopper CapacityLifetime WarrantyThe MagPump Magazine Loader fits all Mil-Spec AR. magpump