![US XM28 'Grasshopper' Tunnel Rats Gas Mask from Vietnam w/ Carrier Bag for Sale in Petaluma, CA - OfferUp US XM28 'Grasshopper' Tunnel Rats Gas Mask from Vietnam w/ Carrier Bag for Sale in Petaluma, CA - OfferUp](https://images.offerup.com/QIXfSv7UrSRBDdgvHf2fMMNTVZM=/250x419/e024/e0247518e3144781a8acf53879ee620c.jpg)
US XM28 'Grasshopper' Tunnel Rats Gas Mask from Vietnam w/ Carrier Bag for Sale in Petaluma, CA - OfferUp
Omega Militaria - Vietnam War - XM28E4 Commonly referred to as 'grasshopper', the XM28 was introduced in 1968. Like the M17, it features two 'cheek' filters. Unlike the M17 however, this gas
![Katkoon on Twitter: "@Pup_Saxon Thats a XM28 Human Gas Mask, it has this form because it can be center falted flat, tobe small while packed" / Twitter Katkoon on Twitter: "@Pup_Saxon Thats a XM28 Human Gas Mask, it has this form because it can be center falted flat, tobe small while packed" / Twitter](https://pbs.twimg.com/media/E1sEZ-nWYAIGJ8P.jpg)