Tuning Upgrade my Swiss Arms TAC1 Spring

[Arv]

My Swiss Arms TAC1 Main Spring Broke with Which one i can upgrade it 

 

[JohnL57]

Good luck on that! I think many might consider the gun itself as disposable. I suggest you try the manufacturer or distributor in the UK. If you are good at measuring you might try to match it with a comparable spring from Maccari/Air Rifle Headquarters in the US or a spring supplier in the UK. My one experience with the brand did not impress me, but best of luck to you.