US Army Proceeding With M4 and M249 Replacement Program in 6.8mm

Reader John Dingell III writes: The U.S. Army appears to be moving full steam ahead with the replacement of the M4 Carbine and its 5.56mm cartridges with the Next-Generation Squad Weapons (NGSW). It will be chambered in some version of the 6.8mm caliber cartridge that will replace both the 5.56 M4 and the M249 SAW. … Read more