At jabolo you'll find tuning parts for air rifles – from precision kits for spring-piston rifles to adjustable triggers and original replacement parts for PCP systems, including AirJoe/ARC Tuning, Air Arms and GAMO.
What does "tuning" mean for air rifles?
Tuning means deliberately modifying or upgrading components to improve your air rifle's shot behaviour, accuracy, or ergonomics. That ranges from a smoother, quieter shot cycle on spring-piston rifles, to adjustable triggers, to replacement parts for PCP systems like cylinders or pressure gauges.
Precision tuning vs. power increase – an important distinction
Most AirJoe/ARC Tuning kits (V-Mach piston springs, piston seals) are designed purely to increase precision – muzzle energy stays at 7.5 joules and therefore remains licence-free. There are also separate export kits (e.g. the GAMO Export Kit, FlowTec Kit, EDgun replacement parts) that raise power above 7.5 joules. Installing power-increasing parts like these requires official authorisation in Germany and may only be carried out with the appropriate permit – check with your local authority for the exact requirements.
Popular tuning parts at jabolo
- Adjustable triggers and trigger blades: e.g. for the Air Arms S400/S410/TX200, Weihrauch (AirJoe aluminium/brass tuning trigger), or as a replacement part for the Huben GK1.
- V-Mach piston spring kits: for the Weihrauch HW35 and HW77/97, available from 7.5 joules up to FAC (18 joules) – designed to increase precision, not raw power.
- Resettable safeties: for various Weihrauch break-barrel rifles, developed by V-Mach/Steve Pope.
- Compensators and grip accessories: e.g. the Air Arms S400 compensator or the AirJoe cocking-lever grip – purely ergonomic upgrades with no effect on power.
Does installation have to be done by a gunsmith?
Yes – under German law, tuning parts may generally only be installed by a certified gunsmith, even for pure precision kits with no power increase. Power-increasing export kits additionally require official authorisation. Always observe the legal regulations of your own country as well.
Popular brands at jabolo
Our tuning kits come from AirJoe in collaboration with ARC Tuning and British tuning pioneer V-Mach (Steve Pope, Lyndon Lewington), plus original replacement parts from Air Arms, GAMO and FX Airguns. You'll also find matching accessories in our Silencers section.
Frequently asked questions about air rifle tuning
Does a tuning kit automatically increase my air rifle's power?
No, not necessarily. Precision kits (e.g. V-Mach piston springs) deliberately keep muzzle energy at 7.5 joules. Only parts explicitly labelled "export kit" increase power – and installing those requires official authorisation.
Can I install a tuning kit myself?
Under German law, tuning parts may generally only be installed by a certified gunsmith – this applies even to pure precision kits with no power increase.
Are export kits legal in Germany?
Owning one is legal, but installing it into an F-marked weapon requires official authorisation and may only be carried out by a gunsmith with the appropriate permit. Check with your local authority for the exact requirements.
What does a V-Mach piston spring kit do?
It replaces the piston spring, seal, and spring guides of a spring-piston rifle with matched, high-quality components for a smoother shot cycle and better accuracy – without increasing muzzle energy.
What's the point of an adjustable trigger blade?
It can be adjusted in position and angle to fit your hand, giving a more comfortable and consistent trigger contact – a noticeable advantage especially in precision disciplines.