Precision CNC Aluminum Hopup Chamber M4P Pro for PolarStar HPA Engines

Engineered for airsoft enthusiasts demanding peak performance from their M4/M16 platforms, this CNC-machined aluminum hopup chamber delivers unmatched consistency and accuracy with PolarStar HPA engines. Experience flawless shot-to-shot reliability thanks to its advanced design tailored specifically for HPA systems.

Key Performance Features:

• Enhanced BB Control: Our proprietary BB Latching System eliminates frustrating BB drop when changing magazines. Simply press the latching arm to clear the chamber.
• Micro-Precision Adjustment: Achieve perfect backspin with the aluminum rotary dial knob and precision hop lever. Works flawlessly with both R-Hop and standard setups using included 4mm bucking nubs (6mm optional).
• Zero Wobble Integration: Features interchangeable inlet adaptors (OD11mm standard; 11.5mm/12mm optional) ensuring perfect centering within your HPA engine nozzle outlet. Removable CNC brass side wings and a Delrin locking C-clip guarantee rock-solid barrel alignment – no twisting or play.
• Universal Bucking Compatibility: Maintains full FPS without BB drops when using virtually any aftermarket soft or hard rubber bucking.
• Optimized Airflow: Experience potential FPS gains of 10-30 FPS over stock hop units through superior nozzle alignment and chamber efficiency.

Upgrade Your Airsoft Rifle:

The M4P Pro isn’t just another airsoft accessory; it’s a critical precision upgrade for competitive players and skirmishers seeking maximum range and accuracy from their PolarStar-powered rifles. Achieve tighter groupings and consistent trajectory shot after shot.

Optional Add-on: Boost nighttime gameplay with our Dual UV LED Tracer Module (sold separately), compatible with 7-15VDC power sources.