A used M240 shell lays on the ground at a gun range in Richmond, California, April 29, 2021. The M240 is used on various platforms across the Coast Guard. M240B is employed aboard surface vessels while the M240H is used aboard the MH-60 Jayhawk and MH-65 Dolphin helicopters. The M240 is also used on land by Port Security units. (U.S. Coast Guard photo by Petty Officer 3rd Class Taylor Bacon)