MagPump's MagDump AR15 Mag Unloader quickly and easily unloads all Mil-Spec AR15 magazines. It reduces the potential for magazine spring failure and is constructed of injection molded polymer.This injection-molded polymer makes unloading magazines a breeze while reducing the potential for magazine spring failure. Simply lock the magazine into place and use the lever to safely eject each cartridge. Compatible with all Mil-Spec AR-15 magazines. Features: Quickly and easily unload all Mil-Spec AR-15 magazines Reduces potential for magazine spring failure