Though not quite as famous or controversial as either the M16/M4/AR-15 series or Avtomat Kalashnikova, i.e., the AK-47 platform and its variants, the M14 is a plenty famous and historically ...

The M6 bayonet-knife was used as a bayonet on the M14 series rifle and as a hand weapon. The M7 bayonet-knife was used as a bayonet on the M16 series rifle, the M4 carbine and as a hand weapon.