This Lonex M14 Steel Cylinder (450~401mm) is made with the highest-quality materials and carefully constructed, ensuring long-lasting durability for use in power and durability tuning of replicas. Ideal for airsoft players and service technicians, it maintains stability and improves air compression with its polished interior and special cooling notches. The cylinder is designed for installation in M14 replicas by Marui and similar models with a barrel length of 450~401 mm. Its high-quality steel composition allows it to withstand friction from the piston head and maintain performance. Manufacturer_ Lonex, Dimensions_ 25.5 x 720 mm, Weight_ 30 g, Material_ Steel, Purpose_ Marui M14 replicas (450~401mm).