MK-33
An MK-33 was a projectile weapon used on Earth in the 21st century.

The original colonists of the Terra Nova colony had weapons resembling MK-33s when they departed Earth in 2069 to establish the colony. In 2151, the descendants of the colony were still using the weapons – Athan used one, but Lieutenant Malcolm Reed wasn't sure if it was an older model MK-33 or an MK-34. ()

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Hand-held weapons
Projectile weapons