UK-Gunworks trigger adjustment spring.
Replacement main preload spring to fit Sako Finfire, Sako 75, Tikka T3, Tikka 595/695, Tikka 590/690 triggers.
This replacement spring allows trigger pull to be reduced to approximately 1lb. Fitting can be done in minutes without special tools. Made in the UK.
I just bought this after assuming it would also fit a Tikka M658RH but it won’t. Length of this spring is approx. 10mm and the one in my 658 is closer to 20mm.