What’s the difference between the Hatsan Jet 1 and Jet 2, and do accessories fit both?

The Hatsan Jet 1 is a compact PCP pistol with a single air cylinder. It’s light, easy to carry, and great for plinking or small pest control. The Jet 2 is slightly larger and uses two air cylinders, giving it more shots per fill. That extra air also means it's better suited for extended shooting sessions or more consistent velocity.

Now, compatibility is where things get a bit tricky. Most general parts like optics, grips, and mounts will fit both models. However, you need to be careful when it comes to more technical upgrades like air reservoirs, cylinder-specific mounts, or certain suppressor adapters. Some Hatsan Jet 2 accessories won’t match the Jet 1’s single-cylinder frame or thread layout.

Start with the right adapter and suppressor if you're upgrading for quieter shooting. That alone will make your Hatsan Jet 1 much more backyard-friendly. If you’re mixing gear from Jet 2, just double-check thread sizes and dimensions.