The innovative precision barrel that increases the range and improves the spin of the bb.
Enlarged Groove design in the Precision Inner Barrel allows a tighter interaction with the Hop-Up, substantially enlarging the area of friction between Hop-Up and BB pellets, Maximizing the momentum exerted by the air stream from the Cylinder and the kinetic energy of the pellet. Thanks to the enlarged window and side cuts to the hop-up chamber, it can be used in AEG and GBB replicas. Set included hop-up rubber .
Caution: The HOP-UP Bucking and the SLONG Precision Inner Barrel must be installed properly and the Hop-Up must be free from any grease to achieve maximum benefits.