Maxx Model CNC Aluminum Hop-Up Chamber M4P PRO for M4 Airsoft AEG Rifles

Upgrade your HPA-powered M4 or M16 Airsoft rifle with the Maxx Model CNC Aluminum Hop-Up Chamber M4P PRO, the ultimate precision solution for PolarStar engine setups. Designed specifically for standard AEG receivers and standard AEG inner barrels, this advanced hop-up chamber combines durable CNC-machined aluminum construction with innovative engineering to deliver unmatched accuracy, consistency, and reliability in the field.

Precision CNC Construction for Maximum Accuracy
Crafted from a single solid block of aircraft-grade aluminum, the M4P PRO hop-up chamber is machined to extremely tight tolerances. This robust construction not only increases the durability of your rifle’s internal components but also ensures consistent performance, reducing the risk of misfeeds or FPS loss. The precision rotary dial allows for fine hop-up adjustments, giving you the ultimate control over your BB trajectory and enhancing long-range accuracy for competitive gameplay or MilSim operations.

Optimized for R-Hop, Flat-Hop, and Standard-Hop
The M4P PRO has re-engineered hop-up levers and nubs to work seamlessly with R-Hop, Flat-Hop, and Standard-Hop setups. Whether you’re aiming for pinpoint long-distance shots or reliable medium-range performance, this hop-up chamber ensures every BB flies true and maintains consistent velocity. Compatible with most aftermarket soft and hard rubber buckings, it guarantees excellent FPS retention and prevents misfeeds, even under high-stress conditions.

BB Latching System for Consistent Feeding
A standout feature of the Maxx Model M4P PRO is its innovative BB Latching System. Designed to prevent BBs from falling out when removing the magazine, this system keeps your ammo secure in the chamber, ready for rapid reloads. The latching arm can also be manually pressed to release remaining BBs safely, giving players total control over their ammunition management during critical engagements.

CNC Delrin Locking C-Clip and Compression Springs
The chamber includes a CNC Delrin locking C-clip and three compression springs—top, bottom, and center—ensuring the hop-up unit is perfectly centered, straight, and air-tight. This guarantees precise barrel alignment and eliminates unwanted movement or wobble. Removable CNC brass side wings slide smoothly into outer barrel slots, providing additional stability and perfect integration with the 11mm inner bore HPA engine nozzle outlets.

HPA PolarStar Engine Compatibility
Engineered for HPA PolarStar engines, the M4P PRO accepts the PolarStar M4 nozzle length and seamlessly interfaces with standard AEG receivers. The interchangeable inlet adaptor ensures exact alignment within the 11mm inner bore, allowing for a smooth, secure fit. The result is a consistent FPS output and a highly reliable feeding system, ideal for advanced airsoft operators and competitive players.

Performance Enhancements
Players upgrading to the M4P PRO may see FPS gains ranging from 10 to 30 FPS over standard setups, depending on their configuration. This makes it a high-performance option for those seeking both power and precision without compromising reliability.

Professional Installation Recommended
While the M4P PRO is designed for compatibility with a wide range of setups, professional installation is highly recommended. Fit and compatibility may vary depending on your specific rifle, and some modification could be required for optimal performance.

Manufacturer: Maxx Model

Elevate your HPA-powered M4 or M16 Airsoft rifle with the Maxx Model CNC Aluminum Hop-Up Chamber M4P PRO—precision-engineered for ultimate accuracy, consistency, and reliability in every game scenario.