The Huben Handpump for PCP Airguns · 350BAR/5000 PSI is engineered to increase gas storage pressure and maximize the number of shots you get between fills, making it an essential companion for K1 air rifle and GK1 airgun owners, as well as any PCP airgun shooter. Operating at up to 35 MPa, this manual pump delivers highly efficient performance while remaining compact and easy to carry, allowing you to top up your air supply reliably wherever your shooting takes you — whether at the range or deep in the field. Its efficient design reduces the physical effort typically required to reach high fill pressures, giving K1 and GK1 owners a dependable way to keep their air rifles ready to perform at full power without relying on external air sources, making it a practical and versatile solution for any outdoor shooting session.