Huben GK1. Fitting HUMA-AIR Regulator. Accuracy Problems Solved??

In this video, I install and test the Huma-Air regulator kit for the Huben GK1 PCP pistol to see if regulating the air pressure finally solves my accuracy issues. I take you step-by-step through safely degassing the pistol, stripping down the cylinder, fitting and setting the regulator to 125 bar, replacing seals/O-rings, and putting it all back together. Afterward, we fill it back up, check for leaks, and head to the bench for a full 6-magazine shot count and group test to see the effect on consistency and accuracy. Did the Huma regulator fix the GK1's groupings, or is there still tuning left to do? Watch to find out! ⏱️ Video Chapters: 00:00 – Unboxing the Huma-Air Regulator Kit & Overview 01:30 – Safe Degassing Process & Prep 04:10 – Teardown: Shroud, Grip & Cylinder Removal 08:08 – Regulator Setup (125 Bar) & O-Ring Lubrication 15:08 – Reassembling the Huben GK1 18:05 – Re-gassing & Pressure Leak Check 22:38 – Group & Chrono Testing (Bench Rest) 25:52 – Test Results & Final Thoughts 💬 Join the Discussion: What reg pressure are you running in your Huben GK1, and what pellet weight gives you the tightest groups? Drop your setup in the comments below! 👍 If you found this teardown and guide helpful, please leave a Like and Subscribe to follow the journey as we get this pistol tuned to perfection! #HubenGK1 #PCPairgun #AirgunTuning #HumaAir #FiftyPellets