Hi, I am about to finish the iron parts of my Kibler SMR. I see that Jim sells the "JAX Black - Brass Bronze & Copper Darkener" to use on iron parts and the barrel. I also see that JAX produces a "JAX Black - Iron, Steel & Nickel Blackener." Does anyone know the difference? Why would Jim sell the product for brass to darken iron?
Thanks!
Ben
Thanks!
Ben