XM7 Rifle Overview | Next-Gen U.S. Military Weapon Explore the XM7 rifle, developed by SIG Sauer for the U.S. Army’s Next Generation Squad Weapon program. Designed to replace the M4, the XM7 features a 6.8×51mm hybrid cartridge, extended range, enhanced penetration, and modern battlefield performance shaping the future of U.S. infantry warfare. https://gunsamerica.com/