Description
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.
Functioning
No information about functioning.
See Also
Primer, Percussion, Mk 2A1, Mk IIA1
Source(s)
TM 9-1904, Ammunition Inspection Guide (1944)
