The GK1 is capable of massive raw power. Being unregulated is part of the reason - extreme pressure provides extreme results. However, some users might find interesting the addition of a regulator, that will be able to “tame” this beast and provide all the benefits of shooting a regulated airgun: great consistency and improved efficiency.
This kit consists of the regulator, a gauge and a plug for the reservoir. These are the parts needed to make your GK1 regulated
Note that the regulator kit will allow the standard GK1s (V3,V1) to be used at lower power levels, which makes it perfect for countries with very strict power restrictions (e.g. the UK), as it makes these airguns safely sub 6FPE.