Models / Huben GK1
Semi-automatic PCP pistol
Huben GK1
The K1's mechanism, in a pistol.
Almost every part inside is the same as in the K1. There is no regulator; the closing valve evens out the shots by itself, shutting earlier or later depending on pressure. The pellet goes straight from inside the magazine into the barrel.

- Barrel
- 210 mm
- Magazine
- 19 / 17 shots
- Tube
- 85 cc · 350 bar
- Weight
- 1.20 kg
Close up





Specifications
| Calibre | .22 (5.5 mm) or .25 (6.35 mm) |
|---|---|
| Barrel | Rifled, 210 mm |
| Action | Semi-automatic, hammerless |
| Tube | 85 cc |
| Tube pressure | 350 bar maximum |
| Regulator | None |
| Magazine | Self-indexing; 19 shots in .22, 17 in .25 |
| Muzzle | Plain cap and 1/2-20 UNF threaded cap |
| Sights | Front sight adjustable for height, rear sight for windage |
| Scope mount | 11 mm dovetail |
| Grip | Walnut |
| Dimensions (L×H×W) | 325 × 160 × 50 mm |
| Weight | 1.20 kg |
Factory figures
In Türkiye, 7.5 J maximum. The figures below are the ones published by the manufacturer. Because airguns sold in Türkiye are set to 7.5 joules at the factory, velocity is lower and you get more shots per fill.
| Velocity | Up to 280 m/s |
|---|---|
| Power range | 6 J to 45 J |
| Shots per fill | .22: 45 shots (1.175 g pellet) · .25: 30 shots (2.2 g pellet) |

