Hop Up chamber for Umarex G Series replicas (gen 4/5)

Hop Up chamber for Umarex  G Series (gen 4/5)

High quality, complete Hop Up chamber for Umarex Glock replicas created by the Taiwanese company Unicorn Airsoft. The adjustment process has been completely revised here. The pressure is adjusted by means of a screw at the bottom of the chamber, which in turn is adjusted to the pressure arm, thus obtaining a stable and precise ball flight path.

Fits models: G19X, G19 Gen4, G17 Gen5 and G45.