4UANTUM Friction Hop-Up Rubber for AEG

Engineered for maximum consistency and pinpoint accuracy, the 4UANTUM Friction hop-up bucking delivers a perfectly centered spin on every BB — giving you a steady, predictable trajectory shot after shot.

Built on a proven single-point design, its specialized contact patch contour generates just enough friction to reliably hop even heavy BBs up to 0.48g, without sacrificing spin quality.

By minimizing the contact surface, the 4UANTUM reduces friction inconsistencies and shot-to-shot variance — so every trigger pull produces a flatter, tighter, more accurate shot.

Key features:

• Centered, consistent spin on every BB for reliable trajectory
• Optimized contact patch handles BBs up to 0.48g
• Reduced contact surface minimizes friction errors
• Flat, consistent, high-accuracy shot placement