![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://thumbor.offerup.com/bX3_i-bWElMZKgW46H7q6xGDjcA=/477x800/e024/e0247518e3144781a8acf53879ee620c.jpg)
US XM28 'Grasshopper' Tunnel Rats Gas Mask from Vietnam w/ Carrier Bag for Sale in Petaluma, CA - OfferUp
![Twisted Plastic - Events Gallery - Echo Base Toys Barbecue March 2006 - rare breed - The rare Ultimate Soldier Vietnam tunnel rat with an XM-28 gas mask. Twisted Plastic - Events Gallery - Echo Base Toys Barbecue March 2006 - rare breed - The rare Ultimate Soldier Vietnam tunnel rat with an XM-28 gas mask.](https://www.twistedplastic.com/events/ebt0306/images/ebt0306010.jpg)
Twisted Plastic - Events Gallery - Echo Base Toys Barbecue March 2006 - rare breed - The rare Ultimate Soldier Vietnam tunnel rat with an XM-28 gas mask.
![XM28E4 gas mask, most famously used during the latter stages of the Vietnam War, was meant specifically for riot control agents as a much lighter alternative to the M17. Most famously in XM28E4 gas mask, most famously used during the latter stages of the Vietnam War, was meant specifically for riot control agents as a much lighter alternative to the M17. Most famously in](https://i.redd.it/pbefm2ujcj471.jpg)