MAXX CNC Aluminum Hopup Chamber EVO pd-precision-dynamic Battery: 1pcs CR123A (not included)Material:

Battery: 1pcs CR123A (not included)Material: Polymer

25 Years of free spare parts

For better gas flow and efficiency

Heat-Resistant Switch Mount

Precise BB placement in hop up

MAXX CNC Aluminum Hopup Chamber EVO pd-precision-dynamic Battery: 1pcs CR123A (not included)Material:CNC Aluminum Hopup Chamber EVO unit is precisely machined to perform accurately and consistently on the ASG 2018 CZ Scorpion EVO 3 Airsoft Rifles. The Hopup Chamber EVO unit is built with a Precision Aluminum Rotary Dial Knob for fine hopup adjustments and equipped with 4mm Flat Soft Bucking Nub (6mm Bucking Nub is optional) to perform best with R Hop and Standard Hop to keep the BB shooting accurately and consistently on every single shot. The Hopup