Michael Smallwood Multiple videos (shown below) shared by pro-Houthi media channels during October 2015 show Houthi rebel fighters employing Barrett Model 82A1 (M82A1) anti-materiel rifles during fighting in Yemen. The American-made Barrett M82A1 is semi-automatic, chambered for .50 BMG (12.7 x 99 mm), and designated the M107 in US service. The M82A1 weighs 13.6 kg, has an