If you're talking about the Turkish made Tempest they should be readily available. I have two in .177. Paid £159 each. Be warned. They're very hard to cock having a stronger spring and are more powerful. My springs both broke after around 5,000 shots and I replaced them with Chambers Tempest mainsprings. They're much easier to cock but less powerful. I love em! I find them easy to work on after some excellent advice from Rob M. Mine are accurate if I'm on form at 21ft. Chambers have a good price list for all parts if needed. ATB. Pete.