Heavy duty construction and electric plated finish for long service life BUTTERFLY-LOCK screw to secure gun body in any selected position easily Knurled thick wall barrel for secure grip Smart Air Pocket released valve Capacity: 400cc bulk/ 1,4oz cartridge Air source range: Input pressure: 60psi-150psi, Output pressure: 2400psi-6000psi Recommended air source: input pressure: 90psi, output pressure: 3600psi Suitable for industrial use Vented head cap for easy filling