A dispensing system, comprising: a first metering system, comprising: a first housing; a first metering rod at least partially disposed within the first housing; a first assembly defining a first metering chamber and releasably connected to the first housing, wherein the first metering rod is configured to linearly translate through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber; and a second metering system, comprising: a second housing; a second metering rod at least partially disposed within the second housing; a second assembly defining a second metering chamber and releasably connected to the second housing, wherein the second metering rod is configured to linearly translate through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber, wherein the first metering system is releasably connected to the second metering system; the first assembly further comprises a third housing defining a first inlet passage configured to provide the first material to the first metering chamber and a first outlet passage configured to receive the first material from the first metering chamber; the second assembly further comprises a fourth housing defining a second inlet passage configured to provide the second material to the second metering chamber and a second outlet passage configured to receive the second material from the second metering chamber; the first metering system includes a first linear actuator attached to the first metering rod and configured to translate the first metering rod through the first metering chamber; and the second metering system includes a second linear actuator attached to the second metering rod and configured to translate the second metering rod through the second metering chamber. a first metering system, comprising: a first housing; a first metering rod at least partially disposed within the first housing; a first assembly defining a first metering chamber and releasably connected to the first housing, wherein the first metering rod is configured to linearly translate through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber; and a first housing; a first metering rod at least partially disposed within the first housing; a first assembly defining a first metering chamber and releasably connected to the first housing, wherein the first metering rod is configured to linearly translate through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber; and a second metering system, comprising: a second housing; a second metering rod at least partially disposed within the second housing; a second assembly defining a second metering chamber and releasably connected to the second housing, wherein the second metering rod is configured to linearly translate through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber, wherein the first metering system is releasably connected to the second metering system; the first assembly further comprises a third housing defining a first inlet passage configured to provide the first material to the first metering chamber and a first outlet passage configured to receive the first material from the first metering chamber; the second assembly further comprises a fourth housing defining a second inlet passage configured to provide the second material to the second metering chamber and a second outlet passage configured to receive the second material from the second metering chamber; the first metering system includes a first linear actuator attached to the first metering rod and configured to translate the first metering rod through the first metering chamber; and the second metering system includes a second linear actuator attached to the second metering rod and configured to translate the second metering rod through the second metering chamber. a second housing; a second metering rod at least partially disposed within the second housing; a second assembly defining a second metering chamber and releasably connected to the second housing, wherein the second metering rod is configured to linearly translate through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber, wherein the first metering system is releasably connected to the second metering system; the first assembly further comprises a third housing defining a first inlet passage configured to provide the first material to the first metering chamber and a first outlet passage configured to receive the first material from the first metering chamber; the second assembly further comprises a fourth housing defining a second inlet passage configured to provide the second material to the second metering chamber and a second outlet passage configured to receive the second material from the second metering chamber; the first metering system includes a first linear actuator attached to the first metering rod and configured to translate the first metering rod through the first metering chamber; and the second metering system includes a second linear actuator attached to the second metering rod and configured to translate the second metering rod through the second metering chamber.