The Hydra Stripped Modular Lower comes with an AK-47 Interchangeable Magazine Well and offers the ability to change Magazine Wells on your Lower Receiver to accommodate whatever caliber you want.  Leaving it as a Stripped Lower allows any AR-15 Mil-Spec Stock and Fire Control Group (FCG) to make it complete. For use with the Hydra® Quick Change Barrel Upper Receiver (QCB-D), where you can change calibers by switching out barrels as well.  This is a Stripped Modular Lower Receiver and only includes an AK-47 Interchangeable Magazine Well.

**The AK-47 Mag Well was designed to be used with Hydra’s QCB-D (Quick Change Barrel) Upper Receiver and to use standard Warsaw Pact Metal Magazines and Thermold Polymer Magazines.**