The XM28 was created as a defense against RCAs (Riot Control Agents) such a Tear Gas, as specified on its carrier bag. The mask was used when American troops used Tear Gas to clear out caves and tunnels systems, operated by the Viet cong.

Jul 2, 2024 · XM28E4 gas masks were meant to be lightweight and packable, an advantage over the larger, bulkier M17 gas mask in service at the time, though they were only protective against riot control agents like tear gas. Initially tested by the US Army’s 1st Infantry Division and 1st Cavalry Division, they were accepted for mass produced starting in 1968.

The U.S. Army XM28E4 Riot Control Agent Mask was designed for use by soldiers deploying tear gas in the Vietcong tunnels during the Vietnam War. Its internal cheek filters and low profile made it extremely light and compact. This example was made by Mine Safety Appliances in 1968.

Apr 11, 2008 · I just acquired this XM28E4 Lightweight Protective Mask which was used by US troops in Vietnam, especially 1969 and later. This mask is dated 6-69 on the original package. Various parts of the mask such as face piece and exhale valve cover are also dated 69.

Nicknamed the "Grasshopper" for its unusual appearance, the XM28 gained favour with pilots, LRRPs, Tunnel Rats, and SOG teams due to its extremely lightweight and compact design. The mask can completely fold in on itself which allows it to just barely fit into its waterproof pouch.

The XM28E4 “Grasshopper” Riot Control gas mask is a scarce mask made famous during the latter stages of the Vietnam War, when CS gas was used to flush out the Vietcong from their underground tunnels. This example is in great shape with some cracking to the right eyepiece.

History And Development The XM28E4 Riot Control Gas Mask, commonly called the M28 or “grasshopper” mask, was an American protective mask developed during the Vietnam War. Development of the mask began when US soldiers, specifically the 1st Cavalry division, requested a lighter mask to use.

The XM28 was a riot control gas mask developed in 1968. Used by US forces tunnel rats clearing vietcong tunnels during the Vietnam conflict and also by riot control police forces.

XM28 - An entirely new foldable mask made from silicone rubber that featured cheek pocket filters. It weighed only 14 ounces when stored in its waterproof carrier and was designed to protect against riot control agents (RCA) only.

The XM27 mask was effectively a green silicone M17, while the XM28 was a totally new design. Experience in field use in Vietnam showed the XM28 to be superior in design, comfort, and storage; so, after four revisions, the XM28E4 was adopted …