"This manual contains all the essential information of a technical character required by the using arms and services for the identification, use, and care of the particular equipment described, as well as use and care of ammunition, spare parts and accessories, and sighting and fire control equipment."--Pages 1-2.

Caption title. "Prepared under direction of the Chief of Ordnance."--Page 1. "October 1, 1940."--Page 1.

General --Gun and carriage -- Data -- Description and operation -- Disassembly and assembly -- Inspection -- Functioning -- Care and preservation -- Sighting and fire control equipment -- Sighting equipment -- Fire control equipment -- Ammunition -- Spare parts and accessories -- Subcaliber equipment -- Material affected by gas -- Appendix List of references -- Index.