The M62 battle rifle was an air-cooled, magazine-fed selective fire rifle used by United Nations Space Command during the Swarm War. The direct successor of the UNSC's previous battle rifle, the BR55HB, the M62 was an enormous leap forward from the BR55, featuring better accuracy, advanced weight reducing materials, frictionless barrel coating and a selective fire capability. The M62 filled the capability void between smaller calibre weapons using the 7.62x51mm NATO, which lacked sufficient range and stopping power, and larger calibre weapons chambered for the .50 BMG and 14.5x114mm cartridges, which lacked the portability of smaller systems. Utilising the 9.5x60mm high velocity, full power rifle round, the M62 was able to engage targets at short, medium and semi-long ranges, its accuracy