Relatively recently, the U.S. Marine Corps has had a mission shift, or, more properly put, it is now officially recognized as being part of the anti-terrorism effort most publicly addressed by the U.S. Army and U.S. Naval Special Warfare units. As such, they were forced to go to the commercial market for an updated 1911 because their weapons unit, which was building them carefully with limited manpower, could no longer keep up with demand.
This all leads to the proposed "new" USMC 1911, dubbed the MEU (SOC), which stands for "Marine Expeditionary Unit, Special Operations Capable." As I understand it, the MEUs are the USMC's formal designation for its anti-terrorism units, which have a similar mission to those of the U.S. Army and Navy Spec War groups.
The Springfield Loaded Full-Size MC Operator, stock number PX9105ML, incorporates or exceeds all of the Marines' requirements. (As of this writing, however, the ultimate supplier has not been identified.)
The magazine well is beveled, and the ILS gun safety lock is standard.
As I've read on this subject, the Marines want "their" 1911 to include cocking serrations on the slide, fixed front and rear sights, a good level of accuracy but not such that might interfere with reliability, ambidextrous thumb safeties and beavertail grip safety, as well as a long trigger and trigger-pull weight from 4.5 to six pounds (this one had a 5.25-pound trigger). In addition, they want an integral rail on the dustcover for attaching a "gun light" infrared or laser unit, rubber wraparound grips and a Parkerized finish.