I like the Jard trigger for its self contained cartridge design but there is no adjustment. You can buy two different weight ranges but they are fixed. There are plusses and minuses to this.
Actually, there is a pull adjustment within the range of each spring.

That said, it’s just not a great trigger....It is an ok trigger. Likely the best available since the SSS Trigger is not available anymore.

My issue with it is it has creep when pulled slow....I’m not sure why as sear engagement is minimal, Overtravel is minimal.