In unused dialogue from the script of "Terra Nova", Reed (moments before leaving the Novans) advised Athan to check the firing mechanism of his weapon, having noticed it was rusted, an observation Athan immediately confirmed for himself, upon inspecting the weapon.
The prop was sold at the It's A Wrap! sale and auction on eBay.  The weapon was a modified replica MP5 submachine gun without the magazine and modified with a chrome metal barrel. The weapon was inscribed "Made in Germany."