The models of the Specna Arms EDGE J-series come with a body and outer-barrel made of steel. Inside, a robust "ORION“ gearbox ensures reliability and flexibility, as it is equipped with the "Enter & Convert" quick spring change system. This way the performance can be changed in just a few simple steps. The 6.03mm inner barrel ensures the necessary precision. In addition to the factory built-in spring. Specna Arms supplies an additional M90 spring, which can reduce the AEG's performance to approx. 310 FPS.