Ascalon Arms is a Czech manufacturer that supplies the market with quality accessories and upgrades for CZUB weapons, especially the CZ Scorpion EVO 3 submachine gun. This is also the case with this reinforced (to 125%) recoil spring, which serves for a constant course of recoil.
It goes without saying that the reliable function of the weapon is maintained. By using this spring, the shocks of the slide in the rear part of the frame will be eliminated. In this way, there is a significant improvement in the behavior of the weapon during shooting, as well as a reduction in its stress.
The increase in spring force is mainly noticeable in the back dead center of the slide course. This maintains the same reliable extraction and ejection of the cartridge case as with an unmodified weapon.