MGI Rifles

MGI is the manufacture of the MARCK 15, also known as the "Hydra", is the base system for everything associated with our system.  It includes the Modular Lower Receiver with a 5.56(AR) Magazine-Well, the QCB-D Upper Receiver and a 16-inch barrel with an  A2 sight tower and MGI's modified bolt carrier. With this base system, you can purchase and utilize the rest of ever-growing system including our  conversion kits. To convert this system the most you will have to change are three components: the barrel, bolt and mag well.  For some calibers  simply change the  bolt and barrel on this system the user will be able to fire 7 plus calibers including .22 rim-fire, .223 or 5.56, 6.5 Grendel, 6.8 Spc, .450 Thumper, .458 Socom, and the .50 Beowulf.