AIRTECH STUDIOS Hop-Up/Inner barrel Stabilizer Assembly O-Ring (10PC)

The silicone o-rings are designed to replace the original spring that is normally placed in the inner barrel in front of the Hop-Up chamber. Will significantly improve chamber stability by restricting the amount of movement the rifle causes while shooting. The number of rings needed will depend on the weapon type. Features: · Stabilize Hop-Up System · Consistent Hop Effect on BBs · FPS uniform from a stabilized compression 10 units are included and should be enough for 2 Airsoft guns