SIG engineers had set up a selection for comparison, including the M4 and M249, the M7 and M250, as well as the classic M240 7.62-millimeter machine gun and SIG Sauer’s MHS military pistol.

An M2 Browning .50-caliber machine gun and a Mk.-19 grenade launcher sit on the ground as Ukrainian soldiers take part in military drills simulating a possible attack in the Chernobyl zone, a few ...