The Lonex MP5 Steel Cylinder is a top choice for airsoft players and technicians looking to increase power and durability in their replicas. Made with high-quality steel and equipped with cooling notches, this cylinder is ideal for use in Marui and similar MP5 replicas. Its polished interior helps stabilize muzzle velocity and improve system tightness, making Lonex a leading manufacturer in tuning products. Material: Steel / Weight: 28g / Dimensions: 25.5 x 720mm / Manufacturer: Lonex.