M4 carbine
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The M4 carbine is a 5.56×45mm NATO, gas-operated, magazine-fed carbine developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle.
A 10th Special Forces Group soldier with an M4 carbine during an exercise in July 1995
A U.S. Army 82nd Airborne soldier holds an M4 carbine in Vitina, Kosovo in January 2000 during the NATO-led KFOR mission, the first operational use of the M4 by U.S. troops
M4 with M68 Close Combat Optic and AN/PAQ-4
M4 with the newer, redesigned telescoping stock
XM7 rifle
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The XM7, previously known as the XM5, is the U.S. Army variant of the SIG MCX Spear, a 6.8×51mm, gas-operated, magazine-fed, assault rifle designed by SIG Sauer for the Next Generation Squad Weapon Program in 2022 to replace the M4 carbine. The XM7 features a free-floating reinforced M-LOK handguard for direct accessory attachment to slotted hole mounting points.
Soldiers from Training and Doctrine Command with an XM7 rifle (near) and XM250 light machine gun (far).