BONEYARD Action Army VSR10 Hop Up Chamber

immaculate condition, but no original packagingVSR 10 Hop-Up ChamberThe Hop-Up chamber uses a new and innovative system for extremely precise adjustment of pressure placed upon the hopup buckingAction Army Smart Hop-Up Chamber for Marui VSR-10Full CNC Alu ConstructionAdjusting the hop-up screw will increase/decrease hop applied by the bucking.The hopup screw makes it possible to make micro adjustments to hop.This Action Army Hop-Up Chamber does a great job at creating a perfect air seal.Compatible with Tokyo Marui VSR10/G-Spec, Well MB02 / MB03