Police Magnum ORMD Keychain Police Magnum Pepper Sprays - 17% OC Sprays - .5 Oz. - Soft Case -- These police magnum pepper sprays are 17% oc sprays. Each of these police magnum pepper sprays measures 3" tall. These police magnum pepper sprays come with black leatherette keychain holsters and contain 0.5 ounces of 17% oc spray.