Aluminum cylinder with 3/4 hole for use in guns with a mid lenght of barrel, approx. 300 - 400 mm. The outer ribbing ensures better cooling and the perfectly smooth inner surface runs smoothly with the piston head with minimal friction and perfect airseal.
is an airsoft manufacturer in Taiwan producing spare, upgrade parts and accessories such as hop-up chambers, inner barrels, motors, connectors, wiring, parts for gearbox and even outer parts such as handguards and stocks, so you can make a complete AEG just using parts from them. In 2020 SLONG Airsoft released its own M4 AEG rifle.