As an Enlisted Marine, he served as an Anti-Armor Marine, a Scout-Sniper, and Sniper Instructor. The M27 Infantry Automatic Rifle (IAR) is a lightweight magazine-fed 5.56mm select-fire weapon based on the HK416 rifle designed and manufactured by the German company Heckler & Koch. The M27 has proven that it can sustain a round fired through a fully water-filled bore without damaging the weapon, and as important, the M27 can continue to fire without issue after this event. While the belt-fed M249 was portable and had a high volume of fire, its relatively heavy weight meant gunners could have trouble keeping up with riflemen.[6]. [4] Because the M27 cannot be fed from the widely used M2 PMAG magazines that M4s or M16 rifles in the squad could take, the Marines banned the polymer PMAG for issue on November 26, 2012 to prevent interchangeability issues. Kyle Mizokami is a defense and national-security writer based in San Francisco who has appeared in the Diplomat, Foreign Policy, War is Boring and the Daily Beast.
The IAR is based on the Heckler and Koch 416 rifle, which outwardly is very similar to the M4 carbine. A Short Barrel Rifle Upper Receiver Group (SBR URG) is being considered and new suppressor technologies are in the works. As an Officer, he served as an Infantry Weapons Officer. The Commandant of the Marine Corps was so impressed by the performance of the M27 in testing and the Marines’ confidence in it that he ordered Marine Corps Systems Command to purchase the Approved Acquisition Objective and fully field the weapon.
In December 2017, the Marine Corps announced that it would equip every member of an infantry squad with the M27.
Fewer rounds need to be used and automatic riflemen can remain in combat longer and in more situations.
Its gas-operated short-stroke piston action with a rotating bolt runs cooler, cleaner, requires less maintenance, has less internal parts wear and is less susceptible to malfunctions compared to previous direct impingement M4/M16 style weapons. One M38 marksman version, fitted with a scope and QDSS suppressor, is to be fielded per infantry squad to hit targets at 600 meters. Caliber was specified as 5.56Ă—45mm with non-linked ammunition, so as to achieve commonality with existing service rifles. Shooters transitioned from long-range precision fire at 700 meters to short-to-medium-range suppressive fire at 200 meters, both while in the prone position. I need only read the comments below to know. Unlike the M4 carbine the M27 uses the gas piston operating system, which uses a piston to drive the bolt.
With an IAR, the doctrine is that lower volume of fire is needed with better accuracy.