More than just an adaptation of the 2R2M system to the USMC's LAV-25 chassis, this project aimed for the added option to lift the entire weapon assembly, including the semi-automated loading mechanism and the computerised fire control system, out of the carrier vehicle and put it on a carriage to be towed by a tractor vehicle such as a HMMWV.

In December 2019, the MEPAC (Mortier Embarqué Pour l'Appui au Contact), an evolution of the 2R2M was selected by France and will equip a dedicated self-propelled mortar variant of the VBMR Griffon.

Ultimately, the design team picked parts of the French Thomson-Daimler Armements (TDA) experimental 2R2M mortar because it had a usable power driven traverse and elevation in addition to a loading system.

Because the Dragon Fire II contains its own GPS positioning system and pointing system (the Honeywell 5000HG Ring Laser Gyro) and on-board SINCGARS FM radio, it was also capable of controlling other like weapons, with the potential of one designated "Master Gun" controlling multiple other Dragon Fire Mortars in a synchronized manner.

However, the USMC awarded Raytheon a contract to design, develop and demonstrate a new 120 mm long-range, guided-mortar munition for use with the M327 mortar.

[1] The 120 mm rifled mortar PERM round will give the EFSS a reach of 17 kilometres (11 mi), with a CEP of 20 m (66 ft).

[2] The prototype PERM rounds have a GPS antenna and small fins, canards, that provide lift and extend the range of the weapon.

The Marine Corps acquisition program performed a shoot-off of the prototype mortar rounds developed by Raytheon and ATK.

[3] In December 2015, the Marine Corps awarded a five-year contract to Raytheon Missile Systems to deliver about 4,300 rounds.