This action has been really fun to work on. I think I’ve done 5 of these KK500 retrofits. Seeings how this action is meant to go in a metal stock, there’s quite a few modifications and measurements needed to make the conversion for a wood stock. This includes making a bedding block from aluminum and Delrin.

If I were starting over in the Smallbore world, I’d get this action… instead of my old model 37 with a Wright Allen trigger.