4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs Paint or clear a trench

or clear a trench

Designed to be used with all FPS ranges

Aluminum upper receiver assembly with optic rail with built-in back up sight and side rail for lights or other accessories

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

precision manufacturing for improved air seal

4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs Paint or clear a trenchFeatures 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