Some people think that any rifle can be improved by slapping an M4 buttstock on it. Got an AK? Slap an M4 stock on it! A 10/22? Slap an M4 stock on it! A converted semi-auto RPD? Slap an M4 stock on it! When it messed with the HK91, this M4 buttstock fetish went a little too far. The HK91 may be an obsolete, overweight, brass-chewing monster that kicks like a mule, but it has earned its place in history. It should be allowed to keep its dignity . . .