The United States Marine Corps is exploring the possibility of replacing all infantry battalions M4 Carbine rifles with the M27 IAR.

According to a report:

The Marine Corps’ experimental battalion, the California-based 3rd Battalion, 5th Marines, has been conducting pre-deployment exercises with the M27 Infantry Automatic Rifle to evaluate it as the new service rifle for infantry battalions, the commander of 1st Marine Division, Maj. Gen. Daniel O’Donohue told Thursday.

The battalion is set to deploy aboard the 31st Marine Expeditionary Unit this spring. 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.

“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. 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.

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. 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. O’Donohue said the ubiquity of ITX would give evaluators ample data as they contrasted results with the different weapons.

“All you have to do is compare this battalion to the other battalions going through ITX,” he said.

But officials do see some potential drawbacks to equipping every infantry Marine with the weapon.

“One of the things we’re looking at is the rate of fire,” O’Donohue said. “You can burn off too much ammo, potentially, with the IAR. We have a selector, a regulator [showing] how many rounds the Marines shoot. So that’s one area we’re examining with experimentation.”

Another variable is cost.

Chief Warrant Officer 5 Christian Wade, the gunner, or infantry weapons officer, for 2nd Marine Division, told the M27 costs about $3,000 apiece, without the sight. Because the Marine Corps is still grappling with budget cutbacks, he said he was skeptical that the service could find enough in the budget to equip all battalions with the weapons. He said a smaller rollout might be more feasible.

The most recent change the Marine Corps made was from the M16A4 rifle to the much more versatile M4 Carbine. Now, the Corps is eyeing another change in the M27.

The reason for the change apparently lies in the M27’s selector settings. This feature is different from the M4 and M16A4 in that they allow for fully automatic fire instead of burst.

Image courtesy Wikimedia

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10 thoughts on “U.S. Marine Corps Looking to Replace M4 Carbine with the M27 IAR

  1. For those of us that are not in the pipeline for all weapon variations just what does this rifle do to cost $3,000.00, as well as what are the differences between this weapon and the M4 ? Please don’t tell me the heavier barrel and the selector switch add about $1,600.00 to the cost. Economics used to teach that mass production significantly lowers cost but that may be another casualty of modern math.

  2. There are plenty of better US produced options that would simply require at most a BCG and fire control group swap. H&K doesn’t deserve .gov money at all and 3k per rifle is a complete rip off. Not that common sense is very common in .gov acquisition

  3. I Agree with Chris no way should they cost 3 grand a piece. Cheaper options are available. Get a US company to manufacture them as well.

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