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TC 3-20.31-256

Army

MASTERY: GUN TUBE TECHNOLOGY M256 CANNON (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)

Reviewed by Guilherme Correia, active-duty U.S. Air Force

TC 3-20.31-256, "MASTERY: GUN TUBE TECHNOLOGY M256 CANNON (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)", is a United States Army publication, dated June 18, 2025, with Change 001 dated July 31, 2025.

Published

June 18, 2025

Change 001 · July 31, 2025

OPR

T2COM

Headquarters, Department of the Army

Official document

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on armypubs.army.mil

TC 3-20.31-256 — index record

NumberTC 3-20.31-256
TitleMASTERY: GUN TUBE TECHNOLOGY M256 CANNON (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)
PublishedJune 18, 2025
Latest changeChange 001, July 31, 2025
Office of primary responsibilityT2COM
Issued byHeadquarters, Department of the Army
Status on the indexActive
Unit of issueBK PDF P
Source indexArmy Publishing Directorate
Index last readOctober 20, 2026

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REF: TC 3-20.31-256, effective June 18, 2025

Army Publishing Directorate — TC 3-20.31-256

This is an index record, not the publication. The official PDF is the authority; verify the current edition before acting.

Reviewed by Guilherme Correia · Military Toolkit editorial

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