FSC: 1020 - Guns, over 125mm through 150mm

TM 0-2350-311-10 NOV1994 - TM 0-2350-311-10, ARMY TECHNICAL MANUAL: OPERATOR’S MANUAL FOR HOWITZER, MEDIUM, SELF-PROPELLED, 155MM M109A2(2350-01-031-0586)(EIC:3EZ), M109A3 (2350-01-031-8851)(EIC:3E2), M109A4 (2350-01-277-5770)(EIC:3E8), M109A5 (2350-01-281-1719)(EIC:3E7) (NOV-