Optional Accessories Gun Extension ID arc spray extension has been a major leap in improving process technology. Enables spraying in bore or difficult-to-reach-at place. Deflector Nozzle: 90deg. Straight Nozzle: 0 deg. Available in length of: 315 mm(1 ft)/ 630 mm(2 ft) / 945mm(3ft) Allows coating in internal diameter of 70mm & above. Highly engineered nozzles, tips and positioners have been designed for applications that demand maximum durability.