MAXX CNC Aluminum Hopup Chamber MXW (For MTW) under-100 meaning they are of the

meaning they are of the higest quality and build standard

Pre-lightened with 7 holes in the body making this piston extremely lightweight

please contact Jefftron directly: support@jefftron

*If you use PDI hopup chamber

Up to a 50

MAXX CNC Aluminum Hopup Chamber MXW (For MTW) under-100 meaning they are of theCNC Aluminum Hopup Chamber MXW unit is precisely machined to perform accurately and consistently on HPA MTW Milspec, Forged, Billet and MTW 9 series. The Hopup Chamber MXW unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, 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. The Hopup