I have an M40 gas mask for sale. It is brand new, size M. I have all the accessories for it and the carrier. I also have an extra used carrier that I cut all the extra crap off of to use as more of a SWAT type carrier where the NBC accessory pouches are not needed.
The filter is old and should not be used for anything other than CS.
I was the NBC guru for my squad and know the ins and outs of these masks and what to look for so I can say this mask if perfect.
$100 plus shipping.