The Mark 48, or Mk 48 is a lightweight belt-fed machine gun, firing 7.62×51mm NATO cartridges from a disintegrating belt of ammunition. It is manufactured by Fabrique Nationale Manufacturing, Inc., a division of FN Herstal based in the United States. The Mk 48 has been developed in conjunction with the U.S. Special Operations Command (USSOCOM), which has adopted the weapon and started its fielding process, beginning with special operations units.

The Mk 48 Mod 0 is a gas-operated, air-cooled, fully automatic belt-fed machine gun. The design is based on an early 7.62×51mm NATO prototype of the FN Minimi, modified to be a scaled-up version of the 5.56 mm Mk 46 Mod 0.

This weapon is the 6th Tier for Light Machines. The Mk 48 does less damage per bullet then the 6P41 or the PKM, but is compensated by a much higher rate of fire, better stability, and accuracy on par with other 5.56mm LMGs. While its ready time and settle time is quite high, it is well-suited for mid-range engagements.