CNC Hop-Up Chamber for SIG553 - GHK SP-NH03013-OD This design not only allows

This design not only allows for extremely precise adjustments

you can ensure that none of your BBs have any difficulty traveling through the barrel

These are projected onto a full-color OLED display

NEW version of the Action Army smart hop-up chamber for ARES Striker AS01/02

CNC Hop-Up Chamber for SIG553 - GHK SP-NH03013-OD This design not only allowsThis Maple Leaf CNC aluminum Hop Up chamber set for the GHK SIG 553 GBB is made from high strength aluminum with high precision CNC machining. This set comes with a 75 degree Maple Leaf Hot Shot hop up bucking. This set fits standard GBB inner barrels and Maple Leaf Crazy Jet inner barrels. It is compatible with GHK SIG 553 GBB rifles. CNC Hop Up Chamber For GHK SIG 553 GBB Includes Maple Leaf Hot Shot Hop Up Bucking (75) Compatible with GBB and Maple