4UANTUM Friction Pro AEG Hop-Up Bucking – 4UAD

4UANTUM Friction Pro hop-up bucking by 4UAD SmartAirsoft for AEG replicas, designed to give every BB the same spin, shot after shot. Its single contact point, contoured to generate more friction, lifts even heavy BBs on a flat, consistent trajectory.

Features and technical specifications

• Manufacturer: 4UAD SmartAirsoft
• Line: 4UANTUM Friction Pro
• Manufacturer code: AEG-001
• Type: single contact point hop-up bucking
• Compatibility: standard AEG hop-up chambers and inner barrels, including HPA replicas
• BB weight: up to 0.48 g
• Length: 25 mm
• Material: rubber
• Colour: orange

How it works

The bucking acts on the BB through a single contact point, which keeps the axis of spin centred on every shot. The reduced contact surface limits errors, while the contour of the contact patch adds just enough friction to lift even the heaviest BBs.

Fitting

It replaces the original bucking in standard AEG hop-up chambers and inner barrels. After fitting, adjust the hop-up with the same BB you will use in game to get the most out of its consistency.

In the field

It is the right choice for players using medium and heavy BBs who want range and consistency: on marksman AEGs and HPA replicas it keeps a flat, repeatable trajectory even over the longest distances.