Tienly Super Rotary AEG Bearing Spring Guide (V2 / V3)

Tienly bearing spring guides feature high-quality ball bearings which allow the spring to rotate during compression and release freely. This alleviates binding of the spring and alleviates torsional strains on the spring - leading to more consistent FPS.

The inherent thickness of the ball-bearing assembly will also act as a spacer for the spring, mildly increasing FPS.