Weapon Macro

Hail All, I'm on here because the macro I want seems to be something I can't figure out. What I need is either a macro that references a specific weapon on a character sheet that shows the improved crit already in it. If that is not possible an excellent, perhaps even a better alternative is a macro where I can change the crit range to reflect the fighter's improved crit ability. Does anyone have any guidance for me here?

Hi Gene, what system and sheet are you using? If you could supply your current attack macro as well that would be helpful for people not familiar with the sys/sheet to lend assistance. The good news is that what you want is most likely very possible :)