MASS stands for Modular Accessory Shotgun System. It is notable for being fed using detachable box magazines, and can be mounted on every weapon compatible with the [[M203]].
== Damage ==
This USG has a barrel length of '''7.75 inches'''.
== Compatibility ==
** [[Colt M16A2]]
** [[Colt M16A4]]
** [[Maze Customs]]: All '''AR-15''' firearms weapons in ''Rifle '' or Carbine configuration ''withoutCarbine'' configuration, except those with the ''Quad Rails packagerails'' installed.
[[Category:Weapon accessories]]