Maxx Model CNC Aluminum Hop-Up Chamber for M4/M16 Series Airsoft AEG Rifles (M4i Pro) Add to Cart

• Machined from a solid aircraft grade aluminum block with tight tolerances to provide better accuracy, and consistency, and durability
• Precision rotary dial designed for fine hop-up adjustments
• Re-engineered hop-up levers and nubs that work best with R-hop, flat-hop, and standard-hop to keep the BBs shooting straight and accurate on every single shot
• Accepts nozzle lengths from 21.00mm to 21.25mm
• Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs
• Equipped with a new CNC delrin locking C-clip design to hold barrel tight without wobbling and twisting, 3 compression springs on top, at bottom and in center of housing to ensure the hop-up unit is exactly centered, straight, and air tight
• Compatible with any 12mm inner bore ICS AEG gearbox & HPA engine nozzle outlets
• Specially designed with BB latching system to prevent dropping BBs after removing the magazine, manual opening to release BBs from inside hop-up chamber by hand