Abstract: The present invention is a portable, hand-mountable defense weapon system which combines an aerosol container of tear gas propellant with an especially adapted carrier means. Carrier means has a singular pocket formed between the surfaces of the carrier which snugly retains the aerosol container without the need of any additional closure or retention means. The system is constructed such that it may be mounted with the aerosol container positioned such that the discharge means for discharging the tear gas is juxtaposed to the thumb of the user's hand for immediate use in case of attack upon the user. The system is fastened to the user's hand by a suitable fastener means. The flexible carrier means is less than 2" in width so that it may fit in the user's palm between the base of the fingers and the thumb.