The Huben K1 5.5 mm air rifle is the only semi-automatic Bullpup we offer. Huben K1 is a semi-automatic PCP air rifle, which means that the air rifle doesn’t have to be spring-loaded after each shot. Untypically for a Bullpup, Huben K1 has an ambidextrous black plastic stock, suitable for both right- and left-handers. A highly durable titanium-duralumin cartridge with Kevlar surface has 292 cm3 in volume and it is filled using a Quickfill with pressure up to 350 BAR. However, the Quickfill doesn’t have a thread and needs a quick coupler in order to be filled by a pump or gas cylinder.
The 17-shots magazine cannot be removed, since it is integrated into the weapon. The overall length of the air rifle is 83 cm, with the barrel length being 60 cm. The barrel is of a ‘shrouded’ type, in order to secure a better sound moderation.
The air rifle has no classical sights and it is equipped with Picatinny/Weaver mounting rail for riflescope mounting. A little extra feature is a water level, placed to the back end of the mounting rail. The air rifle is equipped with two manometers, one placed to the loading parts of the gun, right next to the manual safety, and the other at the front part of the cartridge.
The photos of the air rifle are for illustration only. We always offer the last and newest version of the Huben K1 air rifle. At the moment, we have the 2021 version in stock. The air rifle always has two manometers and now also a Kevlar cartridge.