I have a set of springs I put together, that will replace the factory hammer spring in the new Henry single shot rifles. I make no guarantee's that they will work, but they fit in my gun. I take no responsibility for modifications made to your gun. Only one set remains.
Factory spring is about 50#, not confirmed.
This set includes 3 springs, one 31#, one 38#, and one 42#.
Price is $11.25, which includes shipping. I prefer paypal, but will accept other payments.