Forward Charging Handle makes manipulation quick and easy, especially for those familiar with the MP5! The patent-pending MXRA(R) Pro Carbine is primarily chambered in 9mm NATO and is caliber convertible at the user level without tools to accommodate 7 different calibers. Supplied with GlockA(R) pattern magazines, the MXRA(R) Pro is also convertible at the user level to accept common pistol magazines from a variety of manufacturers. Engineered and produced in the USA of aerospace grade materials combined with high-impact polymer components for a lifetime of hard use in abusive environments; the MXRA(R) Pro features MIL-STD 1913 rails at the 6-12 o'clock positions and M Mfg: Fightlite Industries