Marine Corps Weapon Systems: M16A4

The M16A4 service rifle is the standard-issue weapon of the Marine Corps. Marines first become familiar with this weapon while at boot camp, where they are taught everything about the weapon. Marines learn it and they love it. After all, the Marine Corps' motto is "every Marine a rifleman." While in boot camp, recruits receive basic instruction and are taught to fire this weapon. Later, at the School of Infantry (SOI), they further master their rifle skills and combat marksmanship. Upon graduation from SOI, Marines will be assigned to a unit and report to their Permanent Duty Station (PDS), where they are issued their very own M16A4 that will be in their care for the next few years.

Helpful links about the Marine and his rifle:

Characteristics of the M16A4

Lightweight, magazine fed, gas operated, air-cooled, shoulder-fired weapon.

  • Primary Function - Infantry weapon
  • Length - 39.63 inches
  • Weight - 8 pounds
  • Muzzle Velocity - 2,800 FPS
  • Maximum Effective Range:
    Area Target - 2, 624 feet
    Point Target - 1,804 feet
  • Rate of Fire:
    Cyclic - 800 RPM
    Sustained - 12-15 RPM
    Semiautomatic - 45 RPM
    Burst - 90 RPS
  • Magazine Capacity - 30 rounds

To learn more about the M16A4/A4, please click here...

Marine Corps Weapons System

Reviewed by CH


First Lieutenant Joe A. Bosnick, a platoon commander with Bravo Company, Battalion Landing Team 3rd Battalion, 6th Marine Regiment, 24th Marine Expeditionary Unit, fires an M16-A4 service rifle during a weapons calibration shoot at Camp Lejeune, N.C., Nov. 7, 2014.
—U.S. Marine Corps photo by Lance Cpl. Austin A. Lewis

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