MAXX Model CNC VFC SCAR-L/H Hopup Chamber SVMAXX Model CNC VFC SCAR L H Hopup Chamber SV CNC Aluminum Hopup Chamber SV unit is specially designed to improve accuracy, durability and ensure consistent air seal for VFC SCAR L H AEG series. The Hopup Chamber SV unit has a precision rotary dial design for fine hopup adjustments, also re engineered the hopup levers and concave nubs to work best with R hop and Standard Hop to keep the BBs shooting straight and accurate on every single shot. The Hopup