Had to do the same with my Long Ranger.
Stray Cat wrote: ↑Fri Mar 27, 2020 11:42 pmAfter I installed the scope I realized my thumb was going to have a challenge pulling the hammer back. I checked into a couple of different styles and decided on the Grovtec extension. I ordered it from the Henry Store before it closed for CV-19. It is a very nice fit, I will not have a problem with access to the hammer now. A simple little accessory that makes a big difference