C cases are generally used by military contractors and contain handpicked items from Menus A and B as per the individual contractor's desires.  Not as common as the A and B cases.
MRE   RATION - VINTAGE NEW CASE OF C-RATIONS (MCI)(1979 PACK DATE)SUPER RARE!

MRE RATION - VINTAGE NEW CASE OF C-RATIONS (MCI)(1979 PACK DATE)SUPER RARE!

PayPal $329.00 15d 8h
MREs Case (12 Meals) of Menu C Military MRE's with Heaters,  Free Shipping

MREs Case (12 Meals) of Menu C Military MRE's with Heaters, Free Shipping

PayPal $110.00 17d 11h 37m

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