Choose from one of 2 buffer tube positions for your preferred height

Metal slide

Compatibility: For Elite Force GLOCK 19 Gen

Capable of being used with all airsoft green gas-powered guns

■Compatibility: UMAREX VFC GBB Series

MAXX Model Airsoft CNC Aluminum Hop-Up Chamber AEG Series M4i - PRO (Gray) 12g Choose from one of 2Maxx Model CNC 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