US Army WW2 in Normandy -- What Piece of Artilleryman's Gear Is This?

[huntssurplus]

Looking at some more archival footage I came across this interesting piece of gear. Looks like some sort of large pouch or something across the waist of the artilleryman second from the left at 0:23. Looks to be mounted on a pistol belt as there is a canteen also clearly hanging from his waist as well. Any idea what piece of gear this is?

Here is the description of the video on YouTube: 

US artillery firing at German targets in Normandy, France, during World War II. Artillerymen fire gun from sandbagged position on a battlefield. Empty shell cases near artillery gun. Camouflaged artillery guns fires towards German positions. Location: Normandy France. Date: June 1944.

 

Here is the link to the video: 

 

[robinb]

Lightweight gasmask.

[huntssurplus]

I believe it is actually this bag right here and not the lightweight gas mask. I think this is some sort of experimental gear of some sort. I pulled it off of the pinned grenade pouch thread.


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[robinb]

Not an experimental bag. It's a lightweight gas mask.