This AGI video shows you information for Heckler and Koch series of rifles (HK-91, 93, 94 and MP5 and G3). Video give you a look inside of the unique roller lock and fluted chamber systems along with disassembly and assembly (with identifying two specific parts that should never be removed). See how the .22 LR conversion kit works and see some rare U.S. variants from Heckler and Koch. Run Time 80 Minutes.