Marines Self Defense Sap Cap Baseball Hat Black. This is a public safety sap cap, you just take it off and it becomes a defense item. Use it to stun and harm your attacker. With steel bird shots sewed into the back of the hat, this regular baseball hat is a force to be reckoned with. Fits most sizes. Get yours now. Hat reads MARINES. Lift hat from head right on to targeted area. Great tactical novelty item