This is a macroline straight fitting for all standard paintball guns. Nickel plated brass. This is the highest quality air line fitting made for paintball and guaranteed to work! Includes liquid plummers tape pre-seal so no teflon tape is needed for install. This includes easy slide in and push release for standard macro line hose. Fits all standard 1/8 NPT ports for regulators and bottomline ASAs and On Offs.