POSEIDON PG-025 6.05 Air Cushion Inner Barrel Gen.2 172mm 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.2 · Hop-Up rubber: standard (not included) · Length: 172mm · Type: SMG GBB