MAXX CNC Aluminum Hopup Chamber MXW (For MTW) under-100 *If you use PDI hopup

*If you use PDI hopup chamber

The kit does not include a regulator

which beats 99% of all precision barrels on the market

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

MAXX CNC Aluminum Hopup Chamber MXW (For MTW) under-100 *If you use PDI hopupCNC 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