Open Steel Bearings bushings 8 mm ready for extreme mechanical stress

The adoption of these bushings decreases the friction due to the rotation of the gears. This advantage results in both a higher burst speed than a better use of the energy contained in the battery. The open bearing ensures higher strength compared to the closed because the ball bearings that compose it are of larger dimensions. Another advantage of these bushings is the minimum thickness that does not interfere with selector plate and body of the rifles. The dimensions are: O...