4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs Paint Designed to be used with

Designed to be used with all FPS ranges

Power saving/ standby mode

20g BBs)Thread Direction: 14mm Barrel threadsGearbox: Ver 3 Full Metal

Package Includes: 1: H&K USP Compact 1: Green Gas Magazine 1: Manual 1:Hop-up Adjustment Tool

Works With Most Eye Pro

4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs Paint Designed to be used withFeatures Works with standard AEG hopups and barrels Designed to create perfectly centered axis of spin for ultimate consistency Unique contour of the contact patch allows the lift of heavier BBs up to 0. 48g Minimized contact surface to eliminate error Flat, consistent and accurate trajectory! Improve accuracy, range, and groupings Compatibility: For most Standard Airsoft AEG Inner Barrels Material: Rubber Manufacturer: 4UAD SmartAirsoft