It looks like Wyoming-based Magpul will be providing the mags for the Marines moving forward, with their PMAG being the only authorized mag for field use while the USGI EPM will be relegated to training.
In government administered tests, the Gen M3 PMAG ran through 20,400 rounds of M855A1 ammo without any magazine-related stoppages, so there is that. The mags will be in two types, GEN M3 PMAG in Black (NSN 1005-01-615-5169) and the new Medium Coyote Tan (NSN 1005-01-659-7086).
“In light of the results from an enormous body of reliability and durability testing and 4 years of combat use, today it was announced that the PMAG 30 AR/M4 GEN M3 Window, in Black and Medium Coyote Tan (MCT), would be the official magazine of the entire United States Marine Corps,” noted the company in a statement on social media.
The company says the MCT mags with the NSN will be available around SHOT show for commercial sale and were designed with the HK416/M27 in mind, which is a big plus.
And it also means their will probably be about 2 million old metal body GI M16/M4 mags hit the surplus pipeline in the coming year or three.