Tienly Super Rotary AEG Bearing Spring Guide (V2 / V3) Gearbox:V2 License: This airsoft replica is

License: This airsoft replica is manufactured under authorized Griffin Armament® license

*Note this is not the Mad Bull adjustable version

The Lonex ULTIMATE Hop-up chamber unit is designed for the M4 / M16 family of rifles

28 round capacity

Tienly Super Rotary AEG Bearing Spring Guide (V2 / V3) Gearbox:V2 License: This airsoft replica isTienly 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.