US Primer, Percussion, M23, M23A1, M23A2




This primer replaced the Mk 2A1 for 37mm weapons. The body is of entirely different design, being of greater diameter and of different shape. It is press-fit into the cartridge case as are all American made primers for fixed and semifixed ammunition.

See Also

Primer, Percussion, Mk 2A1, Mk IIA1


TM 9-1904, Ammunition Inspection Guide (1944)