3rd Battalion, 14th Marine Regiment (3/14) is a reserve artillery battalion comprising four firing batteries and a headquarters battery. The battalion is based in Bristol, Pennsylvania and its primary weapon system is the M777 howitzer with a maximum effective range of 30 km. They fall under the command of the 14th Marine Regiment and the 4th Marine Division.
Soldiers from 3rd Platoon, Battery B, 4th Battalion, 320th Field Artillery Regiment, 4th Brigade Combat Team, 101 ABN DIV, 101st Airborne Division (Air Assault), load a 155mm High-Explosive round into a M777 howitzer during a fire mission in support of Easy Company, 2nd Battalion, 506th Infantry Regiment, out of Forward Operating Base Salerno, Afghanistan on June 11. U.S. Army photo by Spc. Robert Porter