411 REFERENCE · Wikibooks
America's Army: Special Forces/RPK Automatic Rifle
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
The RPK Automatic Rifle is the Opfor equivalent to the M249 SAW, except with 75x4 bullets initially.
The RPK in America's Army is probably either the original RPK with a drum magazine (http://world.guns.ru/machine/mg15-e.htm) or the RPK-74 (http://world.guns.ru/machine/mg16-e.htm).
The RPK can also be fired in semi-auto mode, something the M249 SAW does not have.