The "weapon" is designed to feel and function much like an actual machine gun or grenade launcher.
"When you pull the trigger and actually fire this thing, it moves," the captain said. "It has the same recoil as a weapon system would. So it gives the gunner as real of an experience as you could have in a virtual environment."
To operate the gun, the user even has to load ammunition.
There are, however, limitations to the system that prevent it from being a perfect one-for-one training platform for the real deal.
For example, this virtual-reality training platform does not factor things like jams or barrel changes in, despite both issues being important parts of operating a heavy machine gun.
In addition to the single gunner training system, there is also a convoy trainer for three vehicle crew members and a dismount.
"In this setup, you have a driver, you have a vehicle commander, and you have a gunner," Ruane told Insider. "You also have the ability to have a dismount, and all members of that crew are plugged into the same virtual system."
"They are all wearing the goggles," Ruane added. "They all have weapons systems attached to the [VR] system, including a dismount who would have an attached M4."
"They operate like a crew," he said, telling Insider that while the training, usually carried out over the course of a weekend, is focused on taking troops through the gunnery tables, the simulator can also be used to train forces for convoy protection missions and other more complex mission sets.
The training normally involves two vehicle crews, but it could be connected to other systems for training with a platoon-sized element.
The company commander said he has seen marked improvements in performance since the introduction of the virtual reality trainer a few years back.
"I've definitely seen a dramatic improvement over the last five years," the captain said.
"In the beginning, crews would have to go two or three times through gunnery," Ruane, who has been with his company for five years now, told Insider, explaining that soldiers would make "simple mistakes."
"Now," he said, "crews are able to get through their engagements and get qualified as a crew" with some of "the highest scores that we've seen in the scoring cycle over the last five years."
Ruane says virtual reality has enhanced their training in a big way.
"A lot of people think, especially some old-school military people, think that the virtual-reality stuff takes away from the actual live-fire ranges, when in fact this is actually an enhancer," he explained, adding that "when you get out to the live-fire ranges, it is going to be muscle memory at that point, and it's going to go flawlessly."