OL-71 Pilum Laser

The OL-71 "Pilum" Laser was a Laser-based weapon developed by the Brotherhood of Nod by the time of the Fourth Tiberium War and were featured on their elite Cyborg Commando units. These large rifle type weapons were carried on the right arm of the cyborg and were directly connected to the commandos power core thus bypassing any need for a charge-up time which was a common problem faced by most forms of laser wepaonry. This allowed the "Pilum" to strike fast before an opponent had adequate time to protect themselves.

Source

 * Cyborg Profile