AcuSport will carry MGI's Hydra Modular Rifle system and accessories throughout their distribution centers to retailers nationwide. MGI, the original inventors of the Bushmaster, developed the Hydra Modular Rifle system. The MGI MARCK 15, known as the Hydra, is the base system, ready to fire out-of-the-box that includes the Modular Lower Receiver, QCB Upper Receiver and a 16-inch barrel. The MGI Hydra system includes various magazine wells and caliber conversions that allow barrel changes in seconds and utilizes the correct magazine for the desired caliber. In this ever growing system, many calibers are now available including .22 rimfire, 9mm, .40 S&W, .45 ACP, .223 or 5.56, 6.5 Grendel, 7.62x39, 6.8 SPC, .450 Thumper, .458 SOCOM, .50 Beowulf and over two dozen configurations with additional magwells. The Hydra Modular Rifle system is the most versatile black rifle platform on the market today. The much anticipated MGI 9mm and .40 S&W conversion kits for use with Glock magazines will soon be available and also distributed through AcuSport.