About this item

• Machined from a solid aircraft aluminum block with tight tolerances to achieve the most accuracy, consistency, and durability
• Performed accurately and consistently with HPA PolarStar Engines on standard M4/M16 platform
• Precision Rotary Dial Knob for fine hopup adjustments
• Re-engineered the precision Hopup Lever and 4mm Bucking Nubs (6mm Bucking Nubs are optional) to perform best with R-Hop and Standard-Hop to keep the BB shooting accurately and consistently on every single shot
• Fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use
• Tracer LED Ready! (Not included)
• Proffessional Installation Recommended.

CNC Aluminum Hopup Chamber M4P Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently with HPA PolarStar Engines on standard M4/M16 platform.