M27 IAR

1. 본문

The M27 Infantry Automatic Rifle (IAR) is a 5.56mm select-fire assault rifle/squad automatic weapon developed from the HK416 by Heckler & Koch. It's used by the United States Marine Corps (USMC).

Here are some key facts about the M27 IAR:

• Origin: The M27's development began in 2000, with the Marines seeking a lighter, more accurate replacement for the M249 Squad Automatic Weapon (SAW). The Heckler & Koch HK416 was selected and designated the M27 IAR in 2010.
• Purpose: Initially, the M27 was intended to replace a portion of the M249 SAWs used by automatic riflemen. It was designed to enhance the automatic rifleman's maneuverability and speed. The M27 is now issued to all infantry riflemen to replace M4 carbine.
• Design: It's a variant of the Heckler & Koch HK416, utilizing a gas piston system instead of the direct impingement system found in many M4/M16-type rifles.
• Features:
• 5. 56x45mm caliber.

• Uses a 30-round magazine.

• It has a 6-position adjustable buttstock.
• Equipped with a Trijicon ACOG 3.5x35 Squad Day Optic (SDO) and backup iron sights.
• Role: While originally intended for automatic riflemen, it now serves as the standard infantry rifle.

It can be used in multiple roles, including:

• Light machine gun

• Designated marksman rifle.

• Assault rifle.
• Suppressive Fire: The M27 IAR shifts the concept of suppressive fire. With the M249 SAW, suppression relied on the volume of fire. With the M27, suppression comes from engaging with precise, accurate fire at long range and fully automatic fire at short range.

The M27 IAR designation is a tribute to the 2nd Battalion, 7th Marine Regiment, which developed the Infantry Automatic Rifle concept.