![]() And at first contact you have the overwhelming superiority of fire from which all the tactics evolve," O'Donohue said. "I think the fundamental is the accuracy of the weapon, the idea that you're going to use it for suppressive fires. It also has a proprietary gas piston system that makes the weapon more reliable and reduces wear and tear.Īnd the the IAR can fire in fully automatic mode, while the standard M4 has single shot, semi-automatic and three-round burst options.Ĭurrently, each Marine Corps infantry fire team is equipped with a single IAR, carried by the team's automatic rifleman. It has a free-floating barrel, which keeps the barrel out of contact with the stock and minimizes the effect of vibration on bullet trajectory. However, the M27 has a slightly longer effective range - 550 meters compared to the M4's 500 - and elements that allow for more accurate targeting. The M4 carbine and the M27 IAR handle very similarly as they share a number of features. "All you have to do is compare this battalion to the other battalions going through ITX," he said. O'Donohue said the ubiquity of ITX would give evaluators ample data as they contrasted results with the different weapons. ![]() ![]() The exercise, also known as ITX, is the largest pre-deployment workup for deploying battalions, and typically one of the last exercises they'll complete. Marines in 3/5 used the IAR as their service rifle during the 28-day Integrated Training Exercise held this month at Marine Corps Air-Ground Combat Center 29 Palms, California. They'll look at the firepower, and they'll do every bit of training, and then they'll deploy with that weapon, and we'll take the feedback to the Marine Corps to judge," O'Donohue said. "When they take the IAR and they're training out there with all the ranges we do with the M4, they're going to look at the tactics of it. As part of its workup and deployment, it has been charged with testing and evaluating a host of technologies and concepts ranging from teaming operations with unmanned systems and robotics to experiments with differently sized squads. The battalion is set to deploy aboard the 31st Marine Expeditionary Unit this spring.
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