Although not identified on screen, the name "Kolarans" is derived from production notes, call sheets in particular, during the making of Nemesis.
The hand weapons used by the Kolarans were actually prop replicas of real present-day weapons with olive-colored fabrics wrapped around various sections. As shown by the It's A Wrap! sale and auction. The weapons were modified replica-guns of the Valtro shotgun,  the FN Herstal P-90,  the Glock 17,  the Vickers machine gun-style jeep-turret guns,  and other carbines.