Huben GK1 - Tuning - Huma-Air Regulator Kit (in-depth) Installation Video
28:26
Huben GK1 - A more in depth look & a few must have upgrades !
6:46
Mounting Huma Regulator Kit into Huben GK1
15:08
Huben GK1 - Upgrades from Wolfiek Group
10:31
Huben GK1 • Tactical Carabine Kit
3:39
Pistolet Huben GK1 jak podnieść energię
36:13
Ep. 2 Zeiss Sub-MOA 1 mile challenge.
6:29
The Huben GK1 .25 SHORTY. Is it still a lethal Air Pistol? TESTED
41:12