The Marine’s Choice: M27 IAR vs M249 for Squad Automatic Weapon

As the Marine Corps upgrades its equipment, the choice between the M27 IAR and the M249 for squad automatic weapon (SAW) has been a topic of debate among service members. While I served in various roles and not specifically as a machine gunner, my personal experience and training with the IAR offer valuable insights into its strengths and potential.

Lightweight Design

The M27 IAR, short for Improved Accuracy Rifle, is notably lighter than its counterparts, such as the M249. Although it may not match the M4 carbine in weight, it significantly reduces the burden on Marines compared to the M249, which weighs over 15 pounds.

Accuracy and Suppression

One of the standout features of the M27 IAR is its exceptional accuracy. The weapon features tightly rifled barrels, allowing for precise and rapid fire. This accuracy is further enhanced when combined with appropriate optical sights, making it a formidable opponent in close combat. Although the IAR may not suppress the enemy with sheer volume of fire as the M249, its accuracy can be a potent suppressing factor in its own right.

Interoperability and Flexibility

Interoperability is another key advantage of the M27 IAR. Unlike the M249, which can be cumbersome to load, the IAR is designed for rapid deployment. Using the same magazine as the M4 and M16, Marines can easily resupply ammunition without the need for complex reloading procedures. Additionally, the IAR’s modular rail system allows for easy integration with other equipment and platforms, enhancing its flexibility in various tactical scenarios.

Optics and Performance

In terms of optics, the M27 IAR’s SDO (Standard Day Optical) sight is highly regarded. This optic provides a balanced magnification, clear reticule, and an easy-to-use design. The combination of the reticule and the orange dot reticle on the sight aids in accurate engagements, especially in close quarters combat (CQB). This feature makes the M27 IAR a versatile weapon for both long-range and close-quarters engagements.

Future of the Marine Corps Kit

The future of Marine Corps equipment is likely to focus on reducing the load while enhancing capabilities. The M27 IAR plays a crucial role in this vision, with a future combat kit aiming to be around 40-50 pounds. This is a significant reduction from the current average of 45-60 pounds, which can take a heavy toll on Marines' physical endurance.

Adapting to joint service operations and linked C-4-I (Command, Control, Communication, Computers, Intelligence) capabilities, the IAR is designed to work seamlessly with other weapons systems. This interoperability ensures that Marines can move more efficiently and effectively in various combat scenarios, leveraging the strengths of each platform.

Conclusion

Whether the M27 IAR will become the standard squad automatic weapon for the Marine Corps remains to be seen. However, based on the principles of future combat and the advancements in equipment, it is likely that the IAR will play a pivotal role in the evolving tactics and strategies of the Marine Corps.

The combination of reduced weight, increased accuracy, enhanced interoperability, and advanced optics makes the M27 IAR a compelling choice for squad automatic weapons. As the Marine Corps continues to adapt to changing combat environments, the IAR offers a promising solution to the challenges of modern warfare.