MAXX CNC Aluminum Hopup Chamber M4i - PRO Gas Pistols Overall length

Overall length

CNC machined nozzle and piston head

Muzzle Velocity: 370-400 FPS (Measured with 0

Integrated custom Storm regulator

Innovative Hop-Up Thumb Dial located inside the gun (can see after dissemble the slide)

MAXX CNC Aluminum Hopup Chamber M4i - PRO Gas Pistols Overall lengthCNC 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