I have for sale a US Navy Signal kit. These are pretty rare and don't come up for sale very often.
MK 31 MOD 0 MK 80 MOD 0 NAVY SEA SIGNAL KIT.
INCLUDES PEN LAUNCHER, 11 PROJECTILES AND POUCH.
USED BY NAVAL PILOTS, SOF, SEALS, ETC.
Located in Raleigh, NC
Link to more pics: https://www.flickr.com/photos/[email protected]