For those who have the Regulated GK1, the V3R, you have the option to turn your V3 into the standard, original V3, thanks to this kit, which provides you with the two plugs to allow you to use your reservoir unregulated.
This is a good option for those who want to try the extra punch of the unregulated version (at the cost of removing the advantages of the regulator, logically)
This kit includes the forward plug and the back plug (the tube is not included)