GBB 4UANTUM Friction Pro-High Performance Hop-up Joint

Designed to achieve ultimate consistency, the Hop-up Bucking Friction Pro focuses on creating a perfectly centered axis of rotation with every stroke. Although based on a rather traditional single-point design, the unique contour of the contact patch generates enough friction to even lift. heavy BBs down to 0.48 grams, while minimizing the contact patch to ensure there is no room for error, resulting in a flat, consistent and precise trajectory!