Difference to other XM8 variants: Integrated bipod heavy 20" barrel for continuous fire 100 rounds drum magazine Real Life vs Games: The XM8 series never left prototype stage, no army in the world uses it as a regular weapon.
Reality vs Games: The XM8 series existed only as prototypes. Even though test results were sometimes a lot better than competing products, the US Army did not want it. Heckler & Koch continued the program for some time but stopped it finally. This rifle is not produced anywhere (afaik). grenade launcher cannot be attached Difference to XM8 The XM8C is the compact version of the XM8 assault rifle: shorter barrel (9" instead of 12") foldable stock grenade launcher cannot be attached Some games list it as a submachine gun, while others list it as an assault rifle.