Friction Pro GBB Hop-Up Bucking Designed to achieve ultimate consistency, the 4UANTUM AEG GBB | Friction Pro-High Performance focuses on creating a perfectly centered axis of spin in every shot. While based on a rather traditional single-point design. The unique contour of the contact patch generates enough friction to even lift heavy BBs up to 0.48 grams, while minimizing contact surface to ensure there’s no room for error. 4UANTUM GBB Bucking | Friction Pro-High Performance Resulting in a flat, consistent, and accurate trajectory!
