US Military Gas Mask Size Medium with Unopened C2A1 Filters and bag. The item "MEDIUM Gas Mask US Military Army protective" is in sale since Thursday, January 14, 2021. This item is in the category "Collectibles\Militaria\Surplus\Personal, Field Gear\Gas Masks". The seller is "johnnydeldred" and is located in Mesquite, Texas. This item can be shipped to United States.