M135 AEG Spring

Reliable and affordable spring by Element. The nominal rating indicates the expected value in m/s (meters per second) with 0.20g BBs. The effective muzzle velocity depends on system sealing and installation quality. To prevent spring breakage, at least one support (piston head or spring guide) should be ball-bearing mounted. Modification work should be performed by experienced users, as tuning may affect system reliability and warranty.