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''' weapons in ''Rifle'' or ''Carbine'' configuration , except those with the ''withoutQuad rails'' the Quad Rails packageinstalled.
[[Category:Weapon accessories]]