Description
Features: One Piece Precision CNC Machined Hop-Up Unit Anodized Finish Includes all chamber parts & bucking Specifications: Application: For M4 / M16 / SR-16 / M4-RIS and other compatible Airsoft AEG models that uses M4 Hopup units. Material: Aluminum, One Piece Type
— CNC machining
— Easy to adjust Hop-up instead of adjusting the gear
— More stable & accurate than original type
— Easy to install, can hide wire