MAXX CNC Aluminum Hopup Chamber M4i - PRO color-black-red 8V batteries

8V batteries

The MPX from SIG AIR has been a highly anticipated airsoft gun that many players around the world have been waiting for

and easy to install

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XD-M Series 9mm /

MAXX CNC Aluminum Hopup Chamber M4i - PRO color-black-red 8V batteriesCNC Aluminum Hopup Chamber M4i Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently on ICS CXP CS4 EBB (include old models) M4 M16 AEG series. The Hopup Chamber M4i 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