Hop-Up Joint GBB 4UANTUM Friction Pro 4UAD

The Taiwanese company 4UAD offers a new-generation high-performance Hop-Up joint, the 4UANTUM Friction Pro. This joint for GBB replicas is designed to deliver the ultimate in shot regularity, with the ball's axis of rotation perfectly centered on every shot. The result is an ideal trajectory in terms of consistency and precision.

The friction generated by its internal contact zone enables the user to shoot balls up to 0.48 grams without any problem.