POSEIDON PG-006 6.05 Air Cushion Inner Barrel 138mm SMG GBB

Precision inner barrel for high-performance upgrades · The patented Air Cushion system creates an air cushion around the ball to improve precision and increase range · Internal diameter: 6.05mm · Material: Copper and manganese alloy with electroless nickel plating for guarantee an extremely smooth and resistant surface · Version: Gen.1 · Hop-Up rubber: Poseidon specifies for Air Cushion Gen.1 barrel (included) · Length: 138mm · Type: SMG GBB