Airsoft Rifle Hopup Chamber – CNC Aluminum Maxx Model for M4/M16 Series AEG Rifles

CNC Aluminum Hopup Chamber MI Pro with BB Latching System

Elevate your airsoft game with the CNC Aluminum Hopup Chamber MI Pro—a precision-engineered upgrade designed for ICS CXP/CS4/EBB M4/M16 AEG platforms. Crafted from solid aircraft-grade aluminum for unmatched durability and accuracy, this hopup chamber delivers consistent air seals and reduced wear over time. Its advanced design includes a precision rotary dial for micro-adjustments, ensuring optimal hop settings for R-Hop, Flat-Hop, or Standard-Hop configurations. Whether you’re shooting competitive matches or casual scenarios, every BB stays straight and on-target.

Why Choose the MI Pro?
– Precision Fit & Performance: Compatible with ICS stock nozzles (21.00-21.25mm) and most aftermarket bucking materials, this chamber maintains FPS without sacrificing reliability.
– Stress-Free Maintenance: The removable brass threaded slot pin simplifies setup and cleaning, while the CNC Delrin Locking C-Clip ensures barrel stability—no wobble or misalignment.
– Innovative BB Latching System: Prevents BB drop when removing magazines; manually release stored pellets with ease for quick reloads or maintenance.
– Enhanced Airflow & Accuracy: Three compression springs center the unit perfectly within gearboxes (11.5-12mm inner bore), maintaining tight seals and improving shot consistency.

Upgrade Your Arsenal
Tested to boost FPS by up to 10%, this hopup chamber is more than an upgrade—it’s a game-changer for serious airsofters. The kit includes essential accessories like CNC aluminum hop arms, silicone nub dampers, and precision brass components, ensuring seamless installation and long-term performance. Designed by Maxx Model for those who demand precision, durability, and cutting-edge innovation in every shot.

Compatible with ICS CXP/CS4/EBB M4/M16 AEG series | Dimensions: 51mm (L) x 38.5mm (H) | Material: Aluminum 6061