The Colt MARS (mini-assault rifle system) was an experimental, scaled-down variant of the M16 rifle tested by Colt as a personal defense weapon (PDW) around 1997. It was chambered for the experimental 5.56×30mm MARS cartridge.
The Colt MARS, an experimental scaled-down assault rifle model of the M16, underwent testing by Colt around 1997 as a potential personal defense weapon (PDW). It employed the experimental 5.56×30mm MARS cartridge.