This Hydra® Modular Lower comes complete 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. For use with the Hydra® Quick Change Barrel Upper Receiver (QCB-D), where you can change calibers by switching out barrels as well.  This Modular Lower Receiver includes the Complete Lower with a B5 Six Position Collapsible Stock with Buffer and Main Spring, Complete Fire Control Group (FCG), B5 Pistol Grip and 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.**

DO NOT DRY FIRE YOUR LOWER WITHOUT A MAGWELL THIS CAN RESULT DAMAGE!!!