U. S. Navy Projector Signal Surface MK-79 Mod 0 NAVSEA Jun 18, 2019 navy MK-79 Mod 0 U. Navy Projector Signal Surface KIT PEN MK31 MOD 0 &MK80 MOD0 NAVSEA Penguin Industries Untested. Spring system on pen works fine 7 refills Believe it to be Vietnam ERA. The item ...
