The 14th Marine Regiment (14th Marines) is a reserve artillery regiment of the United States Marine Corps comprising four firing battalions and a headquarters battery. The regiment is based in Fort Worth, Texas however its units are dispersed among 19 different sites in 13 states. Its primary weapon system is the M777A2 Howitzer with a maximum effective range of 30 km however two of its battalions will be converted to fire the High Mobility Artillery Rocket System (HIMARS) weapon system.