Specifications: (.22 cal and .25 cal)

Barrel length: 210 mm (8.2 inches)
Maximum projectile velocity: .22 caliber – 280 m/s with 18 gn and .25 caliber – 254 m/s with 25 gn
Estimated muzzle energy: .22 caliber – 6-45 Joules and .25 caliber – 6 – 54 Joules.
Safety: Yes
Max. pressure: 5000 psi (350 bar)
Cylinder capacity: 85 cc
Magazine type: Automatic rotating, non-removable
Magazine Capacity: .22 caliber – 19 shots and .25 caliber – 17 shots
Option mounting: 11mm dovetail rail
Handle material: Walnut
Front sight: Adjustable for height adjustment
Rear sight: Adjustable for wind correction
Max. number of shots per fill: .25 caliber – 45 shots. 45th shot at 756 fps and 1450 psi
Dimensions: 35.5 x 16 x 5 cm
Weight: 1.2 kg

Package Contents:

Huben Gk1 Pistol
User Guide
Fill plug & Spare parts bag
Hard case with foam inlay