New SOCOM Rifle Features Barrel Swapping and Cartridge Flexibility

Key Takeaways

U.S. Special Operations Command (SOCOM) will introduce the MK24 Medium Range Gas Gun Assault, replacing the MK17 SCAR.
The rifle features a quick-change barrel system, allowing operators to switch between 7.62mm and 6.5mm Creedmoor cartridges.
SOCOM aims to enhance operational flexibility and accuracy with modern ammunition choices, reflecting broader military trends away from legacy cartridges.

Introduction of the MK24 Medium Range Gas Gun Assault

U.S. Special Operations Command (SOCOM) is set to field the MK24 Medium Range Gas Gun Assault (MRGG-A) before the end of the fiscal year, marking a significant adjustment in military ammunition strategy. This initiative moved away from traditional 7.62mm NATO rounds, according to a report from Task & Purpose. Navy Cmdr. Joe Vermette, a spokesperson for SOCOM, confirmed that the MRGG-A will entirely replace the MK17 SCAR and emphasized a “rapid fielding method” for various Special Operational Force components.

In August, SOCOM awarded a $92 million contract to LMT Defense, based in Iowa, for the MRGG-A. The rifle’s innovative feature is a swappable barrel; operators can switch between firing 7.62mm and 6.5mm Creedmoor cartridges. Joe Hajny, a spokesperson for LMT Defense, highlighted the rifle’s adaptability, stating that it operates as both an M4 carbine and resembles the semi-automatic M110 sniper rifle.

The Importance of Quick Barrel Changes

The MRGG-A’s design allows an operator to change the barrel in about a minute, a crucial feature for scenarios where SOCOM forces are collaborating with partner units that may not have access to 6.5mm ammunition. The barrel length is 14.5 inches, striking a balance between maneuverability and performance. The emergence of the 6.5mm Creedmoor cartridge represents a significant shift, as testing begun in 2017 confirmed its superior performance at 1,000 meters compared to other options.

Hajny anticipates that the MRGG-A will eventually benefit mainline military units, signifying a broader change in ammunition strategy across various military branches. The Army, for example, is transitioning to the 6.8x51mm cartridge with its Next Generation Squad Weapons, moving away from the older 5.56mm and 7.62mm rounds.

Future Developments in SOCOM’s Arsenal

SOCOM has been proactive in assessing its small-arms capabilities. In 2021, SOCOM hosted a testing event with SOFWERX, focusing on weapon systems that provide enhanced accuracy beyond 1,200 meters. In addition to the MRGG-A, interest was shown in a new sniper rifle and lightweight machine gun. Contracts were awarded to Geissele Automatics for a sniper rifle chambered in 6.5mm and Sig Sauer for an LMG-Medium in .338 Norma Magnum.

Lt. Col. Alan Wood, SOCOM’s program manager for lethality, noted that the transition to 6.5mm and .338 cartridges allows for improved effectiveness at longer ranges while significantly reducing overall system weight compared to traditional .50-caliber ammunition. However, the fielding of the LMG remains paused.

The anticipation around the MRGG-A is high, with Wood calling it a “phenomenal, accurate weapon system” eagerly awaited by SOCOM operators. As SOCOM continues to modernize its arsenal, the MRGG-A exemplifies a forward-thinking approach to combat readiness and flexibility in dynamic operational environments.

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